Add spelling fix.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@6143 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on June 25, 2008
37MYXLNN7PF7J2PLOWADYG4I7CDY2YISGPYSY2EBJAWFZUJYZYAAC
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