Oops, fix weight of deep-level jelly pits.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@7646 c06c8d41-db1a-0410-9941-cceddc491573

Created by  zelgadis  on November 26, 2008
CL7XAASKMFTHTM4SDR7BVC6P7RM6BUHKMOTNPTWWFKE6X7ELOM5QC
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