Fix for print(file=something)

git_cache.py

 #!/usr/bin/env python
 # Copyright 2014 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.
 
 """A git command for managing a local cache of git repositories."""
 
 from __future__ import print_function
 import errno
 import logging
@@ skipping 132 matching lines @@
   git_exe = 'git.bat' if sys.platform.startswith('win') else 'git'
   gsutil_exe = os.path.join(
     os.path.dirname(os.path.abspath(__file__)), 'gsutil.py')
   cachepath_lock = threading.Lock()
 
   def __init__(self, url, refs=None, print_func=None):
     self.url = url
     self.refs = refs or []
     self.basedir = self.UrlToCacheDir(url)
     self.mirror_path = os.path.join(self.GetCachePath(), self.basedir)
-    self.print = print_func or print
+    if print_func:
+      self.print = self.print_without_file
+      self.print_func = print_func
+    else:
+      self.print = print
+
+  def print_without_file(self, message, **kwargs):
+    self.print_func(message)
 
   @property
   def bootstrap_bucket(self):
     if 'chrome-internal' in self.url:
       return 'chrome-git-cache'
     else:
       return 'chromium-git-cache'
 
   @classmethod
   def FromPath(cls, path):
@@ skipping 520 matching lines @@
     return options, args
 
 
 def main(argv):
   dispatcher = subcommand.CommandDispatcher(__name__)
   return dispatcher.execute(OptionParser(), argv)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))