Gracefully handle missing git binary
Gracefully handle missing git binary

wfxiang08/changes,dropbox/changes,bowlofstew/changes,wfxiang08/changes,dropbox/changes,dropbox/changes,bowlofstew/changes,bowlofstew/changes,bowlofstew/changes,wfxiang08/changes,wfxiang08/changes,dropbox/changes