Bilious #340 confirmed as fixing C343-394.

The patch was previously applied; this commit notes the bug was fixed.
* C343-19:   Dipping acid in a fountain may not destroy the acid.
* C343-179:  If a monster is killed by a drawbridge while carrying a potion of
             acid, the game may panic.
* C343-268:  Used up potion of acid may end up in bones file.
* C343-394:  Throwing a potion of acid into water may panic the game.
             Author:  Patric Mueller
             Source:  http://bilious.alt.org/?340