enlightenment feedback for sight-based properties (trunk only)
"You can see invisible" is misleading when you can't see anything,
so use alternate phrasing for See_invisible when blind. Also, add extra
wizard mode feedback when blindness is overridden by the monk's Eyes
artifact, when invisibility is blocked by worn mummy wrapping, and when
clairvoyance is blocked by worn cornuthaum. And fix end-of-game disclosure
for blindness; it was only being shown if/when caused by worn blindfold.
projects / nethack / commit