engulfing at dangerous location (trunk only)

engulfing at dangerous location (trunk only)

     From a bug report, 2005:
engulfers affected by conflict might swallow and kill monsters in pools
(not mentioned:  or lava or traps) and move to that spot, then not drown
til next move.  Make drowning and trap checks when engulf attack succeeds
instead of waiting for next turn.

     [This was #2 of the 3 minor bugs; the others have already been fixed.
They were:  (1) placing and exploding a land mine on a lowered drawbridge
would leave a pit instead of destroying the bridge; and (3) cause of death
string "killed by Mr. Izchak, the shopkeeper" should omit "Mr.".]