Fix gclient breakage cause by r26940.

Current checkout revision was ignored so it was always acting like if --force was used.
This was overloading the subversion server, creating timeouts, causing a cascading effect that destroyed the tree.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/225022

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@27027 0039d316-1c4b-4281-b951-d872f2087c98

gclient_scm.py

@@ -212,7 +212,7 @@ class SVNWrapper(SCMWrapper):
 
     # If the provided url has a revision number that matches the revision
     # number of the existing directory, then we don't need to bother updating.
-    if not options.force and from_info['Revision'] == revision:
+    if not options.force and str(from_info['Revision']) == revision:
       if options.verbose or not forced_revision:
         print("\n_____ %s%s" % (self.relpath, rev_str))
       return