Uncolour power string.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@7208 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on October 10, 2008
HHGT66YN4T3VYBU4BZZVSWIX62FIZKMQ5NWPO3V5NWTMELVSGQHQC
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