Fix git branch parsing.

tests/git_rebase_update_test.py

Index: tests/git_rebase_update_test.py
diff --git a/tests/git_rebase_update_test.py b/tests/git_rebase_update_test.py
index f374948c6463f64453b8f94166b9a105da04a89a..ea12d16c27127d382bc771422adc4a8d46ee5f0c 100755
--- a/tests/git_rebase_update_test.py
+++ b/tests/git_rebase_update_test.py
@@ -6,7 +6,6 @@
 """Unit tests for git_rebase_update.py"""
 
 import os
-import unittest
 import sys
 
 DEPOT_TOOLS_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
@@ -69,7 +68,6 @@ class GitRebaseUpdateTest(git_test_utils.GitRepoReadWriteTestBase):
     self.origin.nuke()
     super(GitRebaseUpdateTest, self).tearDown()
 
-  @unittest.skip('broken by git 2.4')
   def testRebaseUpdate(self):
     self.repo.git('checkout', 'branch_K')
 
@@ -342,4 +340,4 @@ if __name__ == '__main__':
     os.path.join(DEPOT_TOOLS_ROOT, 'git_new_branch.py'),
     os.path.join(DEPOT_TOOLS_ROOT, 'git_reparent_branch.py'),
     os.path.join(DEPOT_TOOLS_ROOT, 'git_rename_branch.py')
-  ), required_percentage=85.0))
+  )))