[PATCH] plug MAN-PAGES maintainer in Documentation/SubmittingPatches

Improve the likelihood that someone submitting a patch will notify the
MAN-PAGES maintainer.

This is a follow-up to comments on the July 29 lkml email thread: "Broke nice
range for RLIMIT NICE"

Signed-off-by: Paul Jackson <pj@sgi.com>
Cc: "Michael Kerrisk" <mtk-manpages@gmx.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>