[Controversial] Remove the random emoji from "Tree is open" messages.

scripts/slave/recipe_modules/gatekeeper/api.py

 # Copyright 2014 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.
 
 from recipe_engine import recipe_api
 
 
 class Gatekeeper(recipe_api.RecipeApi):
   """Module for Gatekeeper NG."""
   def __call__(self, gatekeeper_json, gatekeeper_trees_json):
     config = self.m.json.read(
       'reading %s' % self.m.path.basename(gatekeeper_trees_json),
       gatekeeper_trees_json,
     ).json.output
 
     for tree_name, tree_args in config.iteritems():
       # TODO(martiniss): create a creds recipe module to make a nice path
       # reference to /creds
       args = [
           '-v', '--json', gatekeeper_json, '--email-app-secret-file',
-          '/creds/gatekeeper/mailer_password'
+          '/creds/gatekeeper/mailer_password',
+          '--emoji', 'None',
       ]
 
       if tree_args.get('status-url'):
         args.extend(['--status-url', tree_args['status-url']])
       if tree_args.get('sheriff-url'):
         args.extend(['--sheriff-url', tree_args['sheriff-url']])
       if tree_args.get('set-status'):
         args.append('--set-status')
       if tree_args.get('open-tree'):
         args.append('--open-tree')
@@ skipping 33 matching lines @@
           args.extend(tree_args['masters'])
 
       try:
         self.m.python(
           'gatekeeper: %s' % str(tree_name),
           self.package_repo_resource('scripts', 'slave', 'gatekeeper_ng.py'),
           args,
         )
       except self.m.step.StepFailure:
         pass