Expand tidy to lint parts of /tests/wpt

tests/wpt/update_css.py

@@ -2,14 +2,12 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-#!/usr/bin/env python
-
-import argparse
 import os
 import sys
 
 here = os.path.split(__file__)[0]
 
+
 def wpt_path(*args):
     return os.path.join(here, *args)
 
@@ -17,6 +15,7 @@ def wpt_path(*args):
 sys.path.append(wpt_path("harness"))
 from wptrunner import wptcommandline
 
+
 def update_tests(**kwargs):
     from wptrunner import update
 
@@ -26,11 +25,13 @@ def update_tests(**kwargs):
     rv = update.run_update(logger, **kwargs)
     return 0 if rv is update.update.exit_clean else 1
 
+
 def set_defaults(kwargs):
     if kwargs["config"] is None:
         kwargs["config"] = wpt_path('config_css.ini')
     wptcommandline.set_from_config(kwargs)
 
+
 def main():
     parser = wptcommandline.create_parser_update()
     kwargs = vars(parser.parse_args())