autocursing armor worn by monsters

From the newsgroup:  non-cursed dunce cap or helm of opposite alignment
which would glow black and become cursed if worn by the hero wasn't doing
the same when worn by a monster.  Fixing this gives players a new way to
recognize bad hats--drop on altar, then drop in front of approaching goblin
or other wimpy monster capable of wearing armor--but I think that's fair.
Since helms of opposite alignment are usually already cursed it won't make
much difference for them; most players seem to avoid all conical hats so it
won't make much difference for dunce caps either.

doc/fixes34.4

@@ -109,6 +109,7 @@ after destroying drawbridge, hero could appear to be in the wall
 sometimes shop items which hero is forced to buy could be sold back twice
 vision was not updated when polymorphing a statue into a boulder
 `I u' when carrying single unpaid item listed its cost twice
+armor which auto-curses when worn by hero should do same if worn by monster
 
 
 Platform- and/or Interface-Specific Fixes