fix #H1733 - fainting doesn't behave like falling (trunk only)

Suggested by <Someone> <email deleted>, fainting from lack
of food while wielding a cockatrice corpse should fall on that corpse
and be fatal, like triggering a pit or moving down stairs while too
heavily encumbered.  I put the fixes entry in the new features section
even though it probably qualifies as a bug.

src/eat.c

@@ -2723,6 +2723,7 @@ boolean incr;
 				/* stop what you're doing, then faint */
 				stop_occupation();
 				You("faint from lack of food.");
+				if (!Levitation) selftouch("Falling, you");
 				incr_itimeout(&HDeaf, duration);
 				nomul(-duration);
 				nomovemsg = "You regain consciousness.";