This manual is in the new mdoc(7) format. All existing ack manuals
use the old man(7) format. This might be a problem if someone can't
display mdoc(7) files.
The build system doesn't install the cvmach(6) manual; that might
happen later. The current build system installs manuals in two
different places, and doesn't install some manuals, so I don't know
what to do.
