Run auto-spell-checker (codespell) on files in depot_tools.

gerrit_util.py

 # Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """
 Utilities for requesting information for a gerrit server via https.
 
 https://gerrit-review.googlesource.com/Documentation/rest-api.html
 """
 
@@ skipping 308 matching lines @@
       reason = ('Authentication failed. Please make sure your .netrc file '
                 'has credentials for %s' % host)
       raise GerritAuthenticationError(response.status, reason)
 
     # If response.status < 500 then the result is final; break retry loop.
     if response.status < 500:
       break
     # A status >=500 is assumed to be a possible transient error; retry.
     http_version = 'HTTP/%s' % ('1.1' if response.version == 11 else '1.0')
     msg = (
-        'A transient error occured while querying %s:\n'
+        'A transient error occurred while querying %s:\n'
         '%s %s %s\n'
         '%s %d %s' % (
             conn.host, conn.req_params['method'], conn.req_params['url'],
             http_version, http_version, response.status, response.reason))
     if TRY_LIMIT - idx > 1:
       msg += '\n... will retry %d more times.' % (TRY_LIMIT - idx - 1)
       time.sleep(sleep_time)
       sleep_time = sleep_time * 2
       req_host = conn.req_host
       req_params = conn.req_params
@@ skipping 342 matching lines @@
         username = review.get('email', jmsg.get('name', ''))
         raise GerritError(200, 'Unable to set %s label for user "%s"'
                        ' on change %s.' % (label, username, change))
   jmsg = GetChangeCurrentRevision(host, change)
   if not jmsg:
     raise GerritError(
         200, 'Could not get review information for change "%s"' % change)
   elif jmsg[0]['current_revision'] != revision:
     raise GerritError(200, 'While resetting labels on change "%s", '
                    'a new patchset was uploaded.' % change)