Don't pass in --revision into gclient sync on the DEPS sync in apply_issue.py if git

apply_issue.py

 #!/usr/bin/env python
 # 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.
 
 """Applies an issue from Rietveld.
 """
 
 import getpass
 import json
@@ skipping 217 matching lines @@
     print('Checkout path=%s' % scm_obj.project_path)
     return 1
 
   if ('DEPS' in map(os.path.basename, patchset.filenames)
       and not options.ignore_deps):
     gclient_root = gclient_utils.FindGclientRoot(full_dir)
     if gclient_root and scm_type:
       print(
           'A DEPS file was updated inside a gclient checkout, running gclient '
           'sync.')
-      base_rev = 'BASE' if scm_type == 'svn' else 'HEAD'
       gclient_path = os.path.join(BASE_DIR, 'gclient')
       if sys.platform == 'win32':
         gclient_path += '.bat'
       with annotated_gclient.temp_filename(suffix='gclient') as f:
         cmd = [
             gclient_path, 'sync',
-            '--revision', base_rev,
             '--nohooks',
             '--delete_unversioned_trees',
             ]
+        if scm_type == 'svn':
+          cmd.extend(['--revision', 'BASE'])
         if options.revision_mapping:
           cmd.extend(['--output-json', f])
 
         retcode = subprocess.call(cmd, cwd=gclient_root)
 
         if retcode == 0 and options.revision_mapping:
           revisions = annotated_gclient.parse_got_revision(
               f, options.revision_mapping)
           annotated_gclient.emit_buildprops(revisions)
 
         return retcode
   return 0
 
 
 if __name__ == "__main__":
   fix_encoding.fix_encoding()
   sys.exit(main())