Advanced Rogue 7: fix a string literal overwrite. pick_spell() attempted to capitalize type by overwriting the first character, changing it back later. All calls of pick_spell passed a string literal as type, and string literals should be considered immutable. This has been fixed by using a separate variable for the capitalized first character. XRogue already has a similar fix. Reported by John Harris of @Play.

182e26224f92e874cbcf17d96fe2f5cee8bda7d7 rel2016.06
fa70bba6bb3f08f41637d5626594c1ac956fa186 rel2021.03