Revert r104938 "Make svn update not prompt during a sync."

I'm not sure if it's causing the tree blow up but I'm not taking any chance.

TBR=dpranke@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8228017

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@104956 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/gclient.py b/gclient.py
index d2b8ee7..cbba142 100644
--- a/gclient.py
+++ b/gclient.py
@@ -49,7 +49,7 @@
     ]
 """
 
-__version__ = "0.6.3"
+__version__ = "0.6.2"
 
 import copy
 import logging