laktek/punch — pull request #79 by vladkosarev (2013-05-14 20:15:30+00:00)
Title: Fixing robocopy (windows) exit code issue

Successful exit code for robocopy is not necessarily 0, it can also be 1, 2 or 3 as per http://ss64.com/nt/robocopy-exit.html

Checking if we are running robocopy in windows and not triggering error on anything 3 or less.