is_mutagenic(), is_contaminated() and causes_rot() should have been using

&&, not ||

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@5397 c06c8d41-db1a-0410-9941-cceddc491573

Created by  zelgadis  on June 1, 2008
KZQCE332EGX6EOALDW5QKS7CBYORFCOOM7UYE3B2U5PCOIKTMWYQC
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