Fixed missing description for Metabolic Englaciation [1752269]

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1842 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on July 12, 2007
CJPKK53ACPSKYLJQAI3MF6WORZZ3UC3RF5YEH4F2YMTTOZ7KZLHQC
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