From the newsgroup: attempting to #chat to a gnome elicited "the
gnome grunts" (because gnomes have MS_ORC sound, and MS_ORC is just a
synonym for MS_GRUNT) even when the hero was a gnome. This patch makes
MS_ORC (orcs, gnomes, kobolds, a couple of named demons) or MS_GRUNT
(ogres, ettins, trolls, gargoyles) behave as MS_HUMANOID when the hero
has same race. That by itself wasn't quite enough; hostile MS_HUMANOID
monsters other than fake players wouldn't respond, so this gives those
a generic message (threatening the hero). In a somewhat similar case,
peaceful MS_CUSS monsters wouldn't respond; now they say something too.