Fix the svn version check issue, append '--quiet' to get svn version string.

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 986 matching lines @@
     try:
       SVN.Capture(['info', url], cwd=None)
       return True
     except subprocess2.CalledProcessError:
       return False
 
   @classmethod
   def AssertVersion(cls, min_version):
     """Asserts svn's version is at least min_version."""
     if cls.current_version is None:
-      cls.current_version = cls.Capture(['--version'], None).split()[2]
+      cls.current_version = cls.Capture(['--version', '--quiet'], None)
     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)
 
   @staticmethod
@@ skipping 45 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