Improve sorting of skdiff output, and make it consistent across platforms
BUG=https://code.google.com/p/skia/issues/detail?id=677
Review URL: https://codereview.appspot.com/6351045

git-svn-id: http://skia.googlecode.com/svn/trunk@4388 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed