Tune the installed manual pages.

This commit slightly improves the formatting of the manuals.  My
OpenBSD machine uses mandoc(1) to format manuals.  I check the manuals
with `mandoc -T lint` and fix most of the warnings.  I also make
other changes where mandoc didn't warn me.

roff(7) says, "Each sentence should terminate at the end of an input
line," but we often forgot this rule.  I insert some newlines after
sentences that had ended mid-line.

roff(7) also says that blank lines "are only permitted within literal
contexts."  I delete blank lines.  This removes some extra blank lines
from mandoc's output.  If I do want a blank line in the output, I call
".sp 1" to make it in man(7).  If I want a blank line in the source,
but not the output, I put a plain dot "." so roff ignores it.

Hyphens used for command-line options, like \-a, should be escaped by
a backslash.  I insert a few missing backslashes.

mandoc warns if the date in .TH doesn't look like a date.  Our manuals
had a missing date or the RCS keyword "$Revision$".  Git doesn't
expand RCS keywords.  I put in today's date, 2017-01-18.

Some manuals used tab characters in filled mode.  That doesn't work.
I use .nf to turn off filled mode, or I use .IP in man(7) to make the
indentation without a tab character.

ack(1) defined a macro .SB but never used it, so I delete the
definition.  I also remove a call to the missing macro .RF.

mandoc warns about empty paragraphs.  I deleted them.  mandoc also
warned about these macro pairs in anm(1):

    .SM
    .B text

The .SM did nothing because the .B text is on a different line.  I
changed each pair to .SB for small bold text.

I make a few other small changes.

lang/b/compiler/em_b.6

@@ -1,68 +1,53 @@
-.TH EM_B 6
+.TH EM_B 6 2017-01-18
 .ad
-
-
 .SH NAME
 em_b \- ACK B compiler
-
-
 .SH SYNOPSIS
 .B ~em/lib/ack/em_b
 .RI [ options ]
-
-
 .SH DESCRIPTION
 .I em_b
-is a port of the ABC B compiler to the ACK. Interested parties will be
+is a port of the ABC B compiler to the ACK.
+Interested parties will be
 interested in the upstream distribution here:
-
 .nf
 .sp
 https://github.com/aap/abc
 .fi
-
+.PP
-However, the version here has been heavily modified --- bug reports should be
+However, the version here has been heavily modified \(em bug reports should be
 filed with the ACK, not with the upstream compiler.
-
 .PP
 Since B was designed for machines with word addressing, some hacking is
-required to make it work on modern, byte addressed machines. The generated
+required to make it work on modern, byte addressed machines.
+The generated
 code expects B variables to contain word addresses, and then generates
 code to transform these into native addresses before use (which,
-unfortunately, impacts performance). However, the ACK's linker doesn't know
+unfortunately, impacts performance).
+However, the ACK's linker doesn't know
 how to emit word addresses into the program's data sections, and so a
 separate fixup stage has to happen at runtime, just before \fBmain()\fP,
 to convert the byte addresses into word addresses.
-
 .PP
 The end result is that using multiple source files with B is somewhat
 unwieldy, requiring each module to be explicitly named and then an extra
-stage to generate the fixup code. See the \fBack\fP(1) and \fBabmodules\fP(1)
+stage to generate the fixup code.
-for details.
+See the \fBack\fP(1) and \fBabmodules\fP(1) for details.
-
-
 .SH OPTIONS
-
 .I em_b
 accepts the following flags:
-
 .IP \-w\ \fIsize\fP
-Sets the word size, used for scaling addresses. Usually either 2 or 4.
+Sets the word size, used for scaling addresses.
-
+Usually either 2 or 4.
 .IP \-B\ \fIname\fP
 Sets the name of the module currently being compiled (used to generate the
-fixup table symbol name). Defaults to \fImain\fP if not specified.
+fixup table symbol name).
-
+Defaults to \fImain\fP if not specified.
 .IP \-i\ \fIfilename\fP
 The source B file.
-
 .IP \-o\ \fIfilename\fP
 The output compact EM bytecode file.
-
-
-
 .SH SEE ALSO
 \fIack\fR(1), \fIabmodules\fR(1)
-
 .SH REMARKS
 It is very unlikely the \fIem_b\fP will ever be useful for anything.

lang/m2/comp/em_m2.6

@@ -1,4 +1,4 @@
-.TH EM_M2 6 "$Revision$"
+.TH EM_M2 6 2017-01-18
 .ad
 .SH NAME
 em_m2 \- ACK Modula\-2 compiler
@@ -17,7 +17,7 @@ The input is taken from
 while the
 EM code is written on
 .IR destination .
-.br
+.PP
 .I Option
 is a, possibly empty, sequence of the following combinations:
 .IP \fB\-I\fIdirname\fR
@@ -65,7 +65,8 @@ make all procedure names global, so that \fIadb\fR(1) understands them.
 .IP \fB\-g\fR
 produce a DBX-style symbol table.
 .IP \fB\-l\fR
-enable local extensions. Currently, there are two local extensions:
+enable local extensions.
+Currently, there are two local extensions:
 procedure constants, and the type LONGCARD.
 .IP \fB\-s\fR
 make INTEGER ranges symmetric, t.i., MIN(INTEGER) = - MAX(INTEGER).
@@ -77,11 +78,11 @@ disable all range checks.
 enable extra array bound checks, for machines that do not implement the
 EM ones.
 .IP \fB-U\fR
-allow for underscores within identifiers. Identifiers may not start with
+allow for underscores within identifiers.
+Identifiers may not start with
 an underscore, even if this flag is given.
 .IP \fB-3\fR
 only accept Modula-2 programs that strictly conform to [1].
-.LP
 .SH SEE ALSO
 \fIack\fR(1), \fImodula-2\fR(1)
 .IP [1]

lang/pc/comp/em_pc.6

@@ -1,4 +1,4 @@
-.TH EM_PC 6 "$Revision$"
+.TH EM_PC 6 2017-01-18
 .ad
 .SH NAME
 em_pc \- Pascal compiler
@@ -45,9 +45,9 @@ and the \fIn\fR parameter for the alignment of that type.
 Absence of \fIm\fR or \fIn\fR causes a default value to be retained.
 .IP \fB\-w\fR
 suppress warning messages.
-.IP
 .IP \fB\-R\fR
-disable range checks. Additionally, the run-time tests to see if
+disable range checks.
+Additionally, the run-time tests to see if
 a function is assigned, are skipped.
 .IP \fB\-A\fR
 enable extra array bound checks, for machines that do not implement the
@@ -55,26 +55,28 @@ EM ones.
 .IP \fB\-C\fR
 the lower case and upper case letters are treated differently.
 .IP "\fB\-u\fR, \fB\-U\fR"
-allow underscores in identifiers. It is not allowed to start an identifier
+allow underscores in identifiers.
+It is not allowed to start an identifier
 with an underscore.
 .IP \fB\-a\fR
 don't generate code for assertions.
 .IP \fB\-c\fR
-allow C-like strings. This option is mainly intended for usage with
+allow C-like strings.
-C-functions. This option will cause the type 'string' to be known.
+This option is mainly intended for usage with C-functions.
+This option will cause the type 'string' to be known.
 .IP \fB\-d\fR
 allow the type 'long'.
 .IP \fB\-i\fR\fIn\fR
 set the size of integer sets to \fIn\fR. When not used, a default value is
 retained.
 .IP \fB\-s\fR
-allow only standard Pascal. This disables the \fB\-c\fR, \fB\-d\fR, \fB\-u\fR,
+allow only standard Pascal.
-\fB\-U\fR and \fB\-C\fR
+This disables the \fB\-c\fR, \fB\-d\fR, \fB\-u\fR,
-options. Furthermore, assertions are not recognized at all (instead of just
+\fB\-U\fR and \fB\-C\fR options.
+Furthermore, assertions are not recognized at all (instead of just
 being skipped).
 .IP \fB\-t\fR
 trace calls and exits of procedures and functions.
-.PP
 .SH FILES
 .IR ~em/lib/em_pc :
 binary of the Pascal compiler.

util/ack/ack.1.X

@@ -1,23 +1,12 @@
-.\" $Id$
+.TH ACK 1 2017-01-18
-.de SB
-.\" SuBheader
-.sp 1
-.PP
-.nr Sf \\n(.f
-.ft B
-\\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9
-.ft \\n(Sf
-.sp 1
-..
-.TH ACK 1 "$Revision$"
 .ad
-
+.
 .SH NAME
 ack \- Amsterdam Compiler Kit
-
+.
 .SH SYNOPSIS
 \fBack\fP arguments
-
+.
 .SH DESCRIPTION
 This program transforms sources in several
 languages to load files for a variety of machines,
@@ -73,10 +62,8 @@ Optimized compact EM assembly code.
 Machine assembly language code.
 .IP .o
 Object file.
-.PP
+.
-
 .SH OPTIONS
-
 \fIAck\fP accepts the following flags:
 .IP \-m\fImachine\fP
 This flag tells \fIack\fP to generate a load file for \fImachine\fP.
@@ -106,7 +93,8 @@ Note: \fIack\fP refuses to overwrite argument \fI.e\fP files.
 Preserve all intermediate files.
 If two \fB\-t\fP are used,
 \fIack\fP also preserves output of failed transformations.
-
+.
+.sp 1
 .IP \-w
 Suppress all warning messages.
 .IP \-v
@@ -118,7 +106,8 @@ Tell the C-compiler to conform to "Kernighan & Ritchie" C.
 Tell \fIack\fP to use the ANSI C compiler instead of the old one.
 .IP \-fp
 Use the software floating point package, if present.
-
+.
+.sp 1
 .IP \-I\fIdir\fP
 \&\`#include\' files whose names do not begin with \`/\' are
 always sought first in the directory of the \fIfile\fP argument,
@@ -136,7 +125,8 @@ preprocessing.
 Don't generate line directives.
 .IP \-C
 Leave C-comments in.
-
+.
+.sp 1
 .IP \-p
 This flag tells both the Pascal and C front ends to include
 code enabling the user to do some monitoring/debugging.
@@ -144,13 +134,16 @@ Each time a routine is entered the routine \fBprocentry\fP
 is called and just before each return \fBprocexit\fP is called.
 These routines are supplied with one parameter, a pointer
 to a string containing the name of the routine.
-
+.
+.sp 1
 .IP \-B\fIname\fP
 Tells the B front end what the name of the module being compiled is, for use
-with separate compilation. Defaults to
+with separate compilation.
+Defaults to
 .I main
 if not specified. See the section below on compiling B.
-
+.
+.sp 1
 .IP \-O
 .IP \-O\fInum\fP
 .IP \-O\fIopt1,opt2,...\fP
@@ -239,7 +232,8 @@ for higher levels: as for \-O4.
 Disable the generation of code by the front ends to
 record line number and source file name at run-time.
 (This is the default for C and Fortran).
-
+.
+.sp 1
 .IP \-l\fIname\fP
 Tells \fIack\fP to insert a library module at this point.
 For example: the library \fImon\fP contains the
@@ -259,13 +253,14 @@ These flags tell \fIack\fP to include the libraries needed when
 a file with \fIsuffix\fP would be included in the arguments.
 .IP \-LIB
 This flag tells the peephole optimizer
-.RF em_opt 6
+em_opt(6)
 to add information about the visibility of the names used
 to each output module.
 This is needed by
 assembler/linkers when these modules are to be inserted
 in libraries.
-
+.
+.sp 1
 .IP \-{xxx}
 The string starting after \`{\' and terminated by a \`}\' is passed
 as an option string to the Pascal compiler and supersedes corresponding
@@ -293,7 +288,8 @@ the defaults per program.
 The changed options are recorded in the "e.out" header.
 These flags \-\- and \-+ are passed to the assembler for this purpose.
 So, \-\-t and \-+pfce invert the defaults.
-
+.
+.sp 1
 .IP \-R\fIprogram=xxx\fP
 Replace the \fIprogram\fP by the pathname \fIxxx\fP.
 The program names referred to later in this manual are allowed here.
@@ -320,7 +316,7 @@ Sparc, Vax, Intel 80386.
 .PP
 All arguments without a suffix or with an unrecognized suffix
 are passed to the loaders, as for flags.
-
+.
 .SH PREPROCESSOR
 All C source programs are run through the preprocessor
 before they are fed to the compiler proper.
@@ -341,40 +337,37 @@ EM_WSIZE:wordsize:EM_PSIZE:pointer size
 EM_SSIZE:size of shorts (C):EM_LSIZE:size of longs (C+Pascal)
 EM_FSIZE:size of floats (C):EM_DSIZE:size of doubles (C+Pascal)
 .TE
-.sp 1
+.PP
 The name of the \fImachine\fP or something like it when
 the machine name is numeric is also defined (as 1).
 As the ANSI C rules forbid this, in ANSI C, underscores are prepended to
 these names.
 .PP
 The default directories searched for include files differ for each machine.
-
+.
 .SH COMPILING B
-
+B programs have special needs when compiled with the ACK.
-B programs have special needs when compiled with the ACK. B modules have to be
+B modules have to be
 initialised before use, to convert pointer addresses to word addresses; this is
 done automatically when compiling a single B source file to an executable, but
 must be done manually when using separate compilation.
-
 .PP
 To do this, compile your B modules with the \fI-B\fP option as usual, and then
 use the
 .B abmodules
 program to scan the object files and emit a C file which performs the
-initialisation. Then compile this as well into an object file, and link the
+initialisation.
-whole lot together. The result will be a runnable executable.
+Then compile this as well into an object file, and link the
-
+whole lot together.
+The result will be a runnable executable.
 .PP
-Beware --- referring to an uninitialised module will cause your program to
+Beware \(em referring to an uninitialised module will cause your program to
 crash!
-
 .PP
 The default initialiser in the B standard library looks for a module called
 \fBmain\fP.
-
 .PP
 For example:
-
 .nf
 .sp
 ack -c -mpc86 thismodule.b -Bthismodule
@@ -384,7 +377,7 @@ abmodules -o binit.c thismodule.o thatmodule.o theothermodule.o
 ack -c -mpc86 binit.c
 ack -mpc86 -o pc86.exe thismodule.o thatmodule.o theothermodule.o binit.o
 .fi
-
+.
 .SH PROGRAMS
 \fIAck\fP uses one or more programs in each phase of the
 transformation.
@@ -421,7 +414,7 @@ input:name:output:description
 \&.o:cv:a.out:Conversion from Ack object to machine object
 .TE
 .in -2
-
+.
 .SH "ENVIRONMENT VARIABLES"
 .IP ACKDIR
 If set, this environment variable overrides ack's idea of its home
@@ -432,13 +425,14 @@ machine it compiles for.
 .IP ACKFE
 If set, this environment variable tells ack where to get the front-end
 description file.
+.
 .SH "SEE ALSO"
-.PD 0
 em_opt(6), em_ass(6), em_cg(6), ack.out(5)
 .IP [1]
 A.S. Tanenbaum, Hans van Staveren, Ed Keizer and Johan
 Stevenson, \fIDescription of a machine architecture for use with
 block structured languages\fP, Informatica rapport IR-81.
+.PD 0
 .IP [2]
 K. Jensen and N. Wirth,
 \fIPASCAL, User manual and report\fP Springer Verlag.
@@ -463,12 +457,13 @@ Informatica rapport IR-99.
 .IP [11]
 C.J.H. Jacobs, \fIThe ACK Modula-2 Compiler\fP.
 .PD
+.
 .SH DIAGNOSTICS
-.PD
 The diagnostics are intended to be self\-explanatory.
+.
 .SH BUGS
 Not all warning messages are superseded by \fB\-w\fP.
-.br
+.PP
 Argument assembly files are not preprocessed when fed into the
 universal assembler/loader.
 .SH AUTHOR

util/amisc/abmodules.1

@@ -1,18 +1,17 @@
-.TH ABMODULES 1
+.TH ABMODULES 1 2017-01-18
 .SH NAME
 abmodules  \-  find B modules
-
 .SH SYNOPSIS
 abmodules [ \-o outputfile.c ] [ file ... ]
-
 .SH DESCRIPTION
 .I abmodules
 finds B modules in a set of ack.out(5) format object files, and either lists
 them or generates a C file which initialises the modules.
 .PP
 This tool is used for multiple compilation of B programs; B modules must be
-initiaised before use, and this tool generates the initialisation code for
+initialised before use, and this tool generates the initialisation code for
-programs containing an abitrary number of modules. See em_b(6) for details.
+programs containing an abitrary number of modules.
+See em_b(6) for details.
 .PP
 Options are:
 .TP
@@ -20,8 +19,7 @@ Options are:
 Write C source to
 .I filename
 containing a definition of a binit() function which will initalise all modules
-found. If not present, a simple list of module names is written to stdout
+found.
-instead.
+If not present, a simple list of module names is written to stdout instead.
-
 .SH SEE ALSO
 ack.out(5), em_b(6)

util/amisc/aelflod.1

@@ -1,9 +1,10 @@
-.TH AELFLOD 1 "$Revision$"
+.TH AELFLOD 1 2017-01-18
 .SH NAME
 aelflod \- ACK ELF loader
 .SH SYNOPSIS
 .B aelflod
-[-a\fInumber\fP] [-b] [-h] [-l] [-m\fInumber\fP] [-v] inputfile outputfile
+[\-a\fInumber\fP] [\-b] [\-h] [\-l] [\-m\fInumber\fP] [\-v]
+inputfile outputfile
 .SH DESCRIPTION
 .I aelflod
 converts an absolute ack.out file into a simple binary memory

util/amisc/anm.1

@@ -1,4 +1,4 @@
-.TH ANM 1 "$Revision$"
+.TH ANM 1 2017-01-18
 .SH NAME
 anm  \-  print name list
 .SH SYNOPSIS
@@ -7,7 +7,8 @@ anm [ \-gnoprus ] [ file ... ]
 .I Anm
 prints the name list (symbol table) of each ack.out(5) format object
 .I file
-in the argument list. If an argument is an aal(1) or arch(1) archive,
+in the argument list.
+If an argument is an aal(1) or arch(1) archive,
 a listing of each object file in the archive will be produced.
 If no
 .I file
@@ -18,32 +19,24 @@ are listed.
 Each symbol name is preceded by its value, a section indicator
 and a type indicator.
 A section indicator can be
-.SM
+.SB U
-.B U
 (undefined symbol),
-.SM
+.SB A
-.B A
 (absolute symbol),
-.SM
+.SB C
-.B C
 (common symbol), a section number (section related symbol),
 or
-.SM
+.SB \-
-.B -
 (other symbol).
 A type indicator can be
-.SM
+.SB F
-.B F
 (filename),
-.SM
+.SB M
-.B M
 (module name),
-.SM
+.SB E
-.B E
 (external (global) symbol),
 or
-.SM
+.SB \-
-.B -
 (local symbol).
 The output is sorted alphabetically.
 .PP
@@ -69,6 +62,5 @@ Print only undefined symbols.
 .TP
 .B  \-s
 Sort in section order.
-.sh FILES
 .SH SEE ALSO
 ack.out(5)

util/amisc/ashow.1

@@ -1,12 +1,12 @@
-.TH ASLOD 1 "$Revision$"
+.TH ASHOW 1 2017-01-18
 .SH NAME
 ashow \- make the contents of an ACK object file human readable
 .SH SYNOPSIS
 ashow inputfile inputfile...
 .SH DESCRIPTION
 .I ashow
-dumps the contents of an ack.out file in human-readable form. It shows
+dumps the contents of an ack.out file in human-readable form.
+It shows
 details of all symbols, relocation entries, sections, and other information.
-
 .SH "SEE ALSO"
 ack.out(5)

util/amisc/asize.1

@@ -1,4 +1,4 @@
-.TH ASIZE 1 "$Revision$"
+.TH ASIZE 1 2017-01-18
 .SH NAME
 asize \- size of an object file
 .SH SYNOPSIS

util/amisc/aslod.1

@@ -1,9 +1,9 @@
-.TH ASLOD 1 "$Revision$"
+.TH ASLOD 1 2017-01-18
 .SH NAME
 aslod \- ACK simple loader
 .SH SYNOPSIS
 .B aslod
-[-h] [-v] inputfile outputfile
+[\-h] [\-v] inputfile outputfile
 .SH DESCRIPTION
 .I aslod
 converts an absolute ack.out file into a simple binary memory dump.

util/amisc/astrip.1

@@ -1,4 +1,4 @@
-.TH ASTRIP 1 "$Revision$"
+.TH ASTRIP 1 2017-01-18
 .SH NAME
 astrip  \-  remove symbols and relocation information
 .SH SYNOPSIS
@@ -11,6 +11,7 @@ ack.out(5) format object files.
 This is useful to save space after a program has been
 debugged.
 .SH FILES
-/tmp/s?	temporary file
+.IP /tmp/s? 16n
+temporary file
 .SH "SEE ALSO"
 ack.out(5)

util/arch/aal.1

@@ -1,5 +1,4 @@
-.\" $Id$
+.TH AAL 1 2017-01-18
-.TH AAL 1 "$Revision$"
 .ad
 .SH NAME
 aal \- archive and library maintainer
@@ -18,10 +17,10 @@ only understands archives made with
 .PP
 .I Key
 is one character from the set
-.B qdrtx,
+.BR qdrtx ,
 optionally concatenated with
 one or more of
-.B vlc.
+.BR vlc .
 .I Afile
 is the archive file.
 The
@@ -82,9 +81,10 @@ The create option supresses the normal message that is produced when
 .I afile
 is created.
 .SH FILES
-/tmp/ar.* temporaries
+.IP /tmp/ar.* 16
+temporaries
 .SH "SEE ALSO"
-led(6), arch(5),
+led(6), arch(5)
 .SH BUGS
 If the same file is mentioned twice in an argument list,
 it may be put in the archive twice.

util/led/ack.out.5

@@ -1,4 +1,4 @@
-.TH "ACK.OUT" 5 "$Revision$"
+.TH "ACK.OUT" 5 2017-01-18
 .ad
 .SH NAME
 ack.out\ \-\ ACK-assembler and link editor output
@@ -55,7 +55,9 @@ struct outhead {
 };
 .fi
 .PP
+.nf
 #define HF_LINK	0x0004	/* unresolved references left */
+.fi
 .PP
 The fields of this structure have the following purpose:
 .nr x \w'oh_magic\ \ \ 'u
@@ -131,9 +133,10 @@ in tact.
 .br
 The next part of an object file contains the sections themselves.
 Usually, the LED program places the sections right behind one another in the
-target machine, taking the
+target machine, taking the alignment requirements into account.
-alignment requirements into account. However, the user is allowed to give
+However, the user is allowed to give
-the start addresses of each section. But if the user gave a start address for
+the start addresses of each section.
+But if the user gave a start address for
 say section 2, but not for section 3, section 3 will be put
 right behind section 2.
 .PP
@@ -194,13 +197,16 @@ The fields of this structure have the following purpose:
 Contains several flags: One of RELO1, RELO2 and RELO4 is set, indicating the
 size of the relocatable datum, RELPC is set when the datum is
 relocated pc relative, RELBR and RELWR indicate byte and word order of
-the relocatable datum. RELBR and RELWR are needed here. It is not sufficient
+the relocatable datum.
+RELBR and RELWR are needed here.
+It is not sufficient
 to have flags for them in the header of the object file, because some
 machines (NS 32016) use several of the possible combinations in their
 instruction encoding.
 .IP or_sect \nxu
-Contains the section number of the referenc\fIing\fR section. This is a number
+Contains the section number of the referenc\fIing\fR section.
-that lies between S_MIN and S_MAX. The section indicated with number S_MIN
+This is a number that lies between S_MIN and S_MAX.
+The section indicated with number S_MIN
 is the first section in the sections-section, etc.
 .IP or_addr \nxu
 Contains the address of the relocatable datum, in the form of an
@@ -209,10 +215,12 @@ offset from the base of the section indicated in the \fIor_sect\fR field.
 Usually contains the index of the referenced symbol in the symbol table,
 starting at 0.
 In this case, the reference is to an undefined external symbol, a common
-symbol, or a section name. The relocatable datum then contains
+symbol, or a section name.
+The relocatable datum then contains
 an offset from the indicated symbol or the start of the indicated section.
 It may, however, also have the same value as
-the \fIoh_nname\fR field of the header. In this case the relocatable datum
+the \fIoh_nname\fR field of the header.
+In this case the relocatable datum
 is an absolute number, and the datum is relocated pc relative.
 The relocatable datum must then be relocated with respect to the
 base address of its section.
@@ -250,12 +258,13 @@ struct outname {
 .PP
 The members of this structure have the following purpose:
 .IP on_foff \nxu
-Contains the offset of the name from the beginning of the file. The name
+Contains the offset of the name from the beginning of the file.
-extends from the offset to the next null byte.
+The name extends from the offset to the next null byte.
 .IP on_type \nxu
 The S_TYP field of this member contains the section number of the symbol.
 Here, this number may be S_ABS for an absolute item, or S_UND, for an
-undefined item. The S_EXT flag is set in this member if the symbol is external.
+undefined item.
+The S_EXT flag is set in this member if the symbol is external.
 The S_ETC field has the following flags:
 S_SCT is set if the symbol represents a section name,
 S_COM is set if the symbol represents a common name,
@@ -265,15 +274,16 @@ and S_MOD is set if the symbol refers to an assembler source file item.
 .IP on_desc \nxu
 Currently not used.
 .IP on_valu \nxu
-Is not used if the symbol refers to an undefined item. For absolute items
+Is not used if the symbol refers to an undefined item.
+For absolute items
 it contains the value, for common names it contains the size, and
 for anything else it contains the offset from the beginning of the section.
 In a fully linked binary, the beginning of the section is added.
 .PP
 .B The string area.
 .br
-The last part of an object file contains the name list. This is just a
+The last part of an object file contains the name list.
-sequence of null-terminated strings.
+This is just a sequence of null-terminated strings.
 .PP
 The relocation information, the symbol table, and the name list do not
 have to be present, but then of course we do not have a relocatable
@@ -283,7 +293,6 @@ object file.
 .br
 The following miscellaneous defines might come in handy when reading
 object files:
-.fi
 .PP
 .nf
 /*

util/led/led.6

@@ -1,4 +1,4 @@
-.TH LED 6 "$Revision$"
+.TH LED 6 2017-01-18
 .ad
 .SH NAME
 led \- link editor
@@ -104,7 +104,8 @@ at load time. This flag disables the \fB\-r\fP flag.
 .TP
 .B \-n
 Usually, after linking, a value in the namelist represents an absolute
-address. Sometimes, particularly when using the \fB\-c\fR flag, it may be
+address.
+Sometimes, particularly when using the \fB\-c\fR flag, it may be
 useful to have as value the offset with respect to the beginning of the
 corresponding section. The \fB\-n\fR flag enables this.
 .TP
@@ -129,9 +130,12 @@ chose to link it (which unresolved reference it resolves).
 This option is useful in resolving 'multiply defined' problems.
 .SH FILES
 ~em/lib.bin/em_led
-a.out	output file
+.PD 0
+.IP a.out 24n
+output file
+.PD
 .SH "SEE ALSO"
-ack(1)
+ack(1),
-arch(1)
+arch(1),
-ack.out.h(5)
+ack.out.h(5),
 uni_ass(6)

util/misc/em_decode.6

@@ -1,5 +1,4 @@
-.\" $Id$
+.TH EM_DECODE 6 2017-01-18
-.TH EM_DECODE 6 "$Revision$"
 .ad
 .SH NAME
 em_decode, em_encode \- compact to readable EM and v.v.

util/misc/esize.1

@@ -1,4 +1,4 @@
-.TH ESIZE I
+.TH ESIZE 1 2017-01-18
 .SH NAME
 esize \- print info from e.out header
 .SH SYNOPSIS
@@ -9,7 +9,8 @@ esize \- print info from e.out header
 prints information from the
 .I e.out
 headers of the indicated files, including flags, word and pointer sizes,
-text and data sizes, etc. All values are in decimal.
+text and data sizes, etc.
+All values are in decimal.
 .PP
 If no parameters are given, the header of
 .I e.out

util/opt/em_opt.6

@@ -1,11 +1,10 @@
-.\" $Id$
+.TH EM_OPT 6 2017-01-18
-.TH EM_OPT 6 "$Revision$"
 .ad
 .SH NAME
 em_opt \- EM peephole optimizer
 .SH SYNOPSIS
 .B ~em/lib.bin/em_opt
-[-Ln] [-m[l]<num>] [ argument ]
+[\-Ln] [\-m[l]<num>] [ argument ]
 .SH DESCRIPTION
 Em_opt reads a compact EM-program, argument or standard input,
 and produces another compact EM program on standard output
@@ -15,22 +14,22 @@ Some other functions are here that make this program mandatory
 before running a codegenerator,
 it may be left out when interpretation is wanted.
 Flags recognized are:
-.IP -L
+.IP \-L
 Make a library module.
 This means that the output will start with a message giving
 the names of all exported entities in this module.
-.IP -n
+.IP \-n
 Do not optimize.
 No peephole optimizations will be performed,
 other functions will be carried out.
-.IP -m<num>
+.IP \-m<num>
 Try to replace multiplies with constants by combinations of shifts and adds,
-but no more than <num> of them. Integer overflow detection is lost with this
+but no more than <num> of them.
-option.
+Integer overflow detection is lost with this option.
-.IP -ml<num>
+.IP \-ml<num>
-Like -m<num>, but also for long multiplies.
+Like \-m<num>, but also for long multiplies.
 .SH "FILES"
-/tmp/emopt??????, is used when the -L flag is given only.
+/tmp/emopt??????, is used when the \-L flag is given only.
 .SH "SEE ALSO"
 ack(1)
 .PD 0