man(1): mimic OSX behaviour

[Christoph Egger <Christoph_Egger%gmx.de@localhost>]

Hi!

On OS X it is possible to specify the manpage filename
with a full or relative path like this:

man ./foo.5

or

man /cd/foo/bar.1.gz

This is really helpful to view the manpage quickly while editing it.
I have a patch which implements this in NetBSD's man(1):

http://www.netbsd.org/~cegger/man.diff

Any comments ?

Christoph