bug#32730: 26.1.50; gnus should font-lock patches coming from git send-email

[Lars Ingebrigtsen]

Tom Tromey <tom@tromey.com> writes:

> Most gdb patches are sent using git send-email.  This appear in gnus as
> plain text.  However, it seems to me that it's relatively easy to
> recognize patches sent from git, and that gnus could font-lock the body
> of the patch.

Well, that was trivial to fix -- Gnus already recognised these diffs,
but only in groups that match mm-uu-diff-groups-regexp.  So I've change
the default to match all groups.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no