shapechanger's inventory (trunk only)

Newsgroup discussion points out that a chameleon which starts out
in nymph form also starts out with nymph's inventory (50% chance each for
mirror and potion of object detection).  That's not right; shapechanging
shouldn't manufacture items.  Also, the post-3.4.3 code to initialize
vampires was overly complicated in order to preserve chameleon behavior,
but the old chameleon initialization which used rndmonst() instead of
selecting a preferred shape was just that way by accident (says the
person who implemented preferred shapes however long ago and completely
overlooked that at the time...).

     This is tricky to test; ^G these days forces a created shapechanger
to start out in its natural form.  That's a bit odd to begin with (a side-
effect of transforming requests for uniques and other special monsters
into doggelgangers), but downright strange when monpolycontrol is enabled;
a prompt to pick monster shape is issued, then the player's choice gets
overridden.  I'm not sure which aspect, if any, of all this should be
changed to fix a wizard mode quirk.

doc/fixes35.0

@@ -379,6 +379,7 @@ hallucination provides partial protection against gaze attacks
 attempting to read "dull" spellbook might cause hero to fall asleep
 dipping prompt is more precise
 using F to attack wall/boulder/statue while wielding pick digs/breaks target
+shapechangers shouldn't receive starting inventory of their initial shape
 
 
 Platform- and/or Interface-Specific New Features