Fixed stupid bug in itemname.cc which was causing duplicate scroll names. [1622001]

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@857 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on January 16, 2007
RM2B7BNFXLDWHFHHMGCYIPQYJQ5KTMX3OCDL7PMT7B2ZA6B3NJGAC
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