Oops, was forgetting to set the portal vault origin string from within

origin_set().

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@7613 c06c8d41-db1a-0410-9941-cceddc491573

Created by  zelgadis  on November 25, 2008
3XQ73DBN7DDG44FPTPUYZSFGAZBKFL5WGQUK23GORJTVCRIAJ65AC
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