message: Make Python 3 dynamic type checking happy
  Summary: per title
diff: @@ -102,7 +102,7 @@ def run_pass(
  executable_path = join(dir_name, 'redex-all')
  if not isfile(executable_path) or not os.access(executable_path, os.X_OK):
  sys.exit('redex-all is not found or is not executable')
  - log('Running redex binary at ' + executable_path)
  + log('Running redex binary at ' + str(executable_path))
  args = [executable_path] + [
  '--apkdir', apk_dir,
  