CleverRaven/Cataclysm-DDA — pull request #4959 by BrianLefler (2013-12-09 00:32:34+00:00)
Title: Always give the prompt when studying a skillbook you can't learn skills from (Fixes #4616)

Current code suppresses the "Your skill won't be improved" prompt when a book is fun, which understandably causes confusion.