Fix retry logic

When passing retry=True to verify_uuid_token this later should
re-call it self when the method fail and this time with retry=False.

Change-Id: I7e8f478e5116ac4119df134587f29f3f25ae8a42
Closes-Bug: #1285847

keystoneclient/middleware/auth_token.py

@@ -1216,7 +1216,7 @@ class AuthProtocol(object):
                            response.status_code)
         if retry:
             self.LOG.info('Retrying validation')
-            return self._validate_user_token(user_token, env, False)
+            return self.verify_uuid_token(user_token, False)
         else:
             self.LOG.warn("Invalid user token: %s. Keystone response: %s.",
                           user_token, data)