Fix a bug in setting maxtries

rietveld.py

 # coding: utf-8
 # 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.
 """Defines class Rietveld to easily access a rietveld instance.
 
 Security implications:
 
 The following hypothesis are made:
 - Rietveld enforces:
@@ skipping 582 matching lines @@
       client_private_key = f.read()
     logging.info('Using OAuth login: %s' % client_email)
     self.rpc_server = OAuthRpcServer(bot_url,
                                      client_email,
                                      client_private_key,
                                      private_key_password=private_key_password,
                                      extra_headers=extra_headers or {})
     self._xsrf_token = None
     self._xsrf_token_time = None
 
-    self._maxtries = 40 or maxtries
+    self._maxtries = maxtries or 40
 
 
 class CachingRietveld(Rietveld):
   """Caches the common queries.
 
   Not to be used in long-standing processes, like the commit queue.
   """
   def __init__(self, *args, **kwargs):
     super(CachingRietveld, self).__init__(*args, **kwargs)
     self._cache = {}
@@ skipping 115 matching lines @@
       self, issue, patchset, reason, clobber, revision, builders_and_tests,
       master=None, category='cq'):
     logging.info('ReadOnlyRietveld: triggering try jobs %r for issue %d' %
         (builders_and_tests, issue))
 
   def trigger_distributed_try_jobs(  # pylint:disable=R0201
       self, issue, patchset, reason, clobber, revision, masters,
       category='cq'):
     logging.info('ReadOnlyRietveld: triggering try jobs %r for issue %d' %
         (masters, issue))