From 1e3877b5956aa965c879e2d920e98ce0cab7dcc8 Mon Sep 17 00:00:00 2001
From: ceriel <none@none>
Date: Thu, 16 Mar 1989 15:41:43 +0000
Subject: [PATCH] documented null-string behaviour

---
 modules/src/input/input.3 | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/modules/src/input/input.3 b/modules/src/input/input.3
index 6cf0b2973..b63f04f66 100644
--- a/modules/src/input/input.3
+++ b/modules/src/input/input.3
@@ -106,8 +106,9 @@ The next input characters will be obtained from the specified file
 \fIfilename\fR.
 This file will be looked for in the directories, mentioned in the
 null-terminated list \fItable\fR.
-When \fItable\fR is 0, only the current directory is searched. When it is not,
-perhaps it is wise to include "." in the table ...
+When \fItable\fR is 0, only the current directory is searched.
+A null string  (different from null-pointer!) in the table means:
+current directory.
 When \fIfilename\fR starts with a "/", \fItable\fR is not used.
 If \fIfilename\fR is a null pointer, standard input is used. In this case,
 the package may not have been instantiated with INP_READ_IN_ONE defined.