food appraisal detects weredisease

from http://l.j-factor.com/nethack/edibility.diff

Authored by "L" (Leon Arnott).
reduce amount of candles
Cthulhu is bright green

Is described by  H.P. Lovecraft as "green, sticky spawn of the stars"

and it no longer have the same glyph as dwarf king
Cthulhu causes dread via warning

Cthulhu is visible via warning even without source of warning, at any
distance