Update style according to advice from pylint.

tools/auto_bisect/bisect_utils.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.
 
 """Utility functions used by the bisect tool.
 
 This includes functions related to checking out the depot and outputting
 annotations for the Buildbot waterfall.
 """
 
@@ skipping 240 matching lines @@
     extra_src = imp.load_source('data', path_to_file)
     GCLIENT_SPEC_DATA = extra_src.GetGClientSpec()
     GCLIENT_SPEC_ANDROID = extra_src.GetGClientSpecExtraParams()
     return extra_src
   except ImportError:
     return None
 
 
 def IsTelemetryCommand(command):
   """Attempts to discern whether or not a given command is running telemetry."""
-  return ('tools/perf/run_' in command or 'tools\\perf\\run_' in command)
+  return 'tools/perf/run_' in command or 'tools\\perf\\run_' in command
 
 
 def _CreateAndChangeToSourceDirectory(working_directory):
   """Creates a directory 'bisect' as a subdirectory of |working_directory|.
 
   If successful, the current working directory will be changed to the new
   'bisect' directory.
 
   Args:
     working_directory: The directory to create the new 'bisect' directory in.
@@ skipping 350 matching lines @@
     platform = os.environ.get('PROCESSOR_ARCHITECTURE')
   return platform and platform in ['AMD64', 'I64']
 
 
 def IsLinuxHost():
   return sys.platform.startswith('linux')
 
 
 def IsMacHost():
   return sys.platform.startswith('darwin')