tree e45b31ae6efa1baf85a341d2dbc6aecc06b3ffef
parent 4126556b4afeb263c6e41c78d909aaf45aaa4d98
author sbc@chromium.org <sbc@chromium.org> 1428607780 +0000
committer sbc@chromium.org <sbc@chromium.org> 1428607780 +0000

git-squash-branch: handle empty squashes

Error out of the current tree is dirty (previously the dirty
content would be incorporated silently into the newly
squashed branch!).

Review URL: https://codereview.chromium.org/1064933004

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@294744 0039d316-1c4b-4281-b951-d872f2087c98