Log Message:
Nethack 3.4.3

This is a bugfix-release.  It should be compatible with bones files
and savegames all the way back to 3.4.0 (but of course it's safer
to ascend before upgrade).

Assorted fixes (full list in doc/fixes34.3):
  * Correct several inconsistencies
  * Correct a potentially fatal bug caused by dropping loadstones
  * Handle level completely filled with monsters better
  * X11 player selection fixes, one of which could be fatal
  * Eliminated a gold-in-shop-container cheat