Let scorefile be '-' for reading from standard input, following

Shawn Moore's request in 1617269.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@648 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on December 17, 2006
VAYRSLA2HKHRQRQRT4PDCOUKEEBB746S76UMS57CMG3M2L6KFWHQC
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