MUT_FAST (oops).
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@4849 c06c8d41-db1a-0410-9941-cceddc491573
7EVUGCRT2GSIOGJDV3TFOCBBFNLH2QPDDMAK4VKNN7MZHCM2BP4AC
UEEDQIFBOUZOXHCWGSEBED4Z3SYGN3DVHOVRJYQVWQQ6BIDLWAQAC
K2CS6TCX2NDVL2ASEHGP4J4K4IJ6FP3ANNKTSIWVG43HPYSBX6ZQC
case 2: mutat = MUT_FAST; break;
case 2: mutat = MUT_FAST_METABOLISM; break;