Urdu using both "urd" and "ur"

["Thomas Thurman" <tthurman gnome org>]

Hi. I've raised this in Bugzilla but I was asked on IRC to email you as well.
http://bugzilla.gnome.org/show_bug.cgi?id=514348

Urdu has both an ISO 639-2 and an ISO 639-3 code ("ur" and "urd"
respectively). The only three gettext files we have in Urdu are called
ur.po. damned-lies, however, calls Urdu "urd", as does Bugzilla. I
believe this should be changed to "ur".

Thomas