man pages up to mdoc guidelines and fix some minor formatting glitches.
Also fixed a number of man pages to not abuse the .Xr macro to
display functions and path names and a lot of other junk.
Corrected some bogus cross references to man pages that we don't/won't
have and either deleted them, or found a more appropriate man page
that we do have. Various other minor changes to silence manck.
Manck is currently down to about 200 lines of errors, down from
the 500 - 600+ when I started all this.
the hp300 crash(8) man page in the lite-2 source tree.
Also removed man8/makedev.8 (this was vax specific and was replaced
by man8/man8.i386/MAKEDEV.8 a long time ago - it was just never removed
from the source tree).
manual page can now also be read.
Change the references in MAKEDEV from com to tty and delete flog and add
sd instead.
Need much more work, but for today, after i lost my first changes through
a new sup :-), that's enough.
