[depot_tools] Use git fetch to optimize the properly configured that use git-svn

presubmit_canned_checks.py

Index: presubmit_canned_checks.py
diff --git a/presubmit_canned_checks.py b/presubmit_canned_checks.py
index 7cb8c5f35a4b38ac570516d25bb6fb362c408985..0a92e3ae03a8ee555fc4f63b77c1b282fe1c4943 100644
--- a/presubmit_canned_checks.py
+++ b/presubmit_canned_checks.py
@@ -856,7 +856,7 @@ def PanProjectChecks(input_api, output_api,
         r'All rights reserved\.\n'
       r'.*? Use of this source code is governed by a BSD-style license that '
         r'can be\n'
-      r'.*? found in the LICENSE file\.( \*/)?\n'
+      r'.*? found in the LICENSE file\.(?: \*/)?\n'

[M-A Ruel, 2012/02/11 02:38:08]

Humm I'd rather have that in a separate CL.

[Dan Beam, 2012/02/11 02:42:36]

I've never done it because it'd be a 2 char CL, and probably won't if I don't
now, just sayin'.

   ) % {
       'year': input_api.time.strftime('%Y'),
       'project': project_name,