man page organization (-more-)

[Guy Harris]

>	/usr/man/man[1-8]	n/troff slaves
>	/usr/man/cat[1-8]	preformatted entries
>	/usr/local/man/man[1-8]	n/troff slaves for local things
>	/usr/local/man/cat[1-8]	preformatted entries

Note that the 4.3BSD and SunOS 4.0 (and, I think, SunOS releases back to
3.x, probably 3.2; not having 4.2BSD source or man pages handy, I can't
speak for it) commands have a MANPATH variable; you can set it to search
"/usr/local/man/<directories>" before "/usr/man/<directories>".  For
example, I set mine to "~/man:/usr/local/man:/usr/share/man" to first
search through the man pages for private commands etc., then for local
commands etc., then through the system man pages.  I also prefer a
scheme like the above to one with "manl" and "mann".