Fix compatibility with Xcode4.3 git

scm.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """SCM-specific utility classes."""
 
 import cStringIO
 import glob
 import logging
 import os
@@ skipping 397 matching lines @@
     try:
       GIT.Capture(['rev-parse', rev], cwd=cwd)
       return True
     except subprocess2.CalledProcessError:
       return False
 
   @classmethod
   def AssertVersion(cls, min_version):
     """Asserts git's version is at least min_version."""
     if cls.current_version is None:
-      cls.current_version = cls.Capture(['--version'], '.').split()[-1]
+      current_version = cls.Capture(['--version'], '.')
+      matched = re.search(r'version ([0-9\.]+)', current_version)
+      cls.current_version = matched.group(1)
     current_version_list = map(only_int, cls.current_version.split('.'))
     for min_ver in map(int, min_version.split('.')):
       ver = current_version_list.pop(0)
       if ver < min_ver:
         return (False, cls.current_version)
       elif ver > min_ver:
         return (True, cls.current_version)
     return (True, cls.current_version)
 
 
@@ skipping 619 matching lines @@
         # revert, like for properties.
         if not os.path.isdir(cwd):
           # '.' was deleted. It's not worth continuing.
           return
         try:
           SVN.Capture(['revert', file_status[1]], cwd=cwd)
         except subprocess2.CalledProcessError:
           if not os.path.exists(file_path):
             continue
           raise