mutt-devel fix for incompatibility with gpgme 1.2.0 (Ticket #22009)

[Christoph Ludwig]

Hi,

the current mutt-devel port generates runtime errors if used with
variant +gpgme. The reason is that gpgme requires since release 1.2.0
that applications call gpgme_check_version() at least once before they
call any gpgme operations. mutt 1.5.20 fails to do so whence it will
abort as soon as the user tries to open any signed or encrypted
email. (Presuming that mutt is configured to use the GPGME backend, of
course, but that's likely if the user asked for the gpgme variant when
he installed the mutt-devel port.)

Ticket #22009 (created 2009-10-12) has a patch that fixes the issue. It
has not yet been applied, though. The mutt-devel port is marked as
"openmaintainer"; may I therefore ask that someone with the necessary
privileges reviews and commits the patch? FWIW, I use it on my notebook
without problems.

Thanks a lot!

Christoph