duplicates.hs from http://stackoverflow.com/questions/14472958/way-to-profile-ixset
duplicates /home/kb/Ubuntu One +RTS -p -h (null)
2013-01-23 19:02:00 UTC (uploaded 2013-01-23 09:00:19 UTC);
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duplicates /home/kb/Ubuntu One +RTS -p -h (null)