Yelp/mrjob — pull request #401 by irskep (2012-03-20 02:39:57+00:00)
Title: Fix du() implementations

I fixed the various `du()` mishaps and wrote test cases for EMR and local modes. I skipped Hadoop because I'd have to add a bunch of stuff to `mockhadoop` and I'd rather go home, but I could be convinced to do that stuff. It just might take a few days.