Fix comment typos.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@3191 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on January 4, 2008
5NV5FF4MDZFC5E3UQQSGX2CTESAGBSSEVCR5UIPRZRBYL6TSDGBQC
Change contents