Add gclient_scm.GitWrapper.pack()

TEST=none
BUG=none

Review URL: http://codereview.chromium.org/507070

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@35177 0039d316-1c4b-4281-b951-d872f2087c98
4 files changed