There's some line ending regex that needs fixing here but I'm not sure how to find the right code.

Any time I modify python files, most often generate_buildbot_json.py

** Presubmit Warnings **
License must match:
.*? Copyright (\(c\) )?(2016|2015|2014|2013|2012|2011|2010|2009|2008|2007|2006|2006-2008|2006-2009|2006-2010) The Chromium Authors\. All rights reserved\.\n.*? Use of this source code is governed by a
 BSD-style license that can be\n.*? found in the LICENSE file\.(?: \*/)?\n
Found a bad license header in these files:
  content\test\gpu\generate_buildbot_json.py

Presubmit checks took 20.5s to calculate.

This is the top of the file:

#!/usr/bin/env python
# Copyright 2016 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.

This looks correct me. Maybe a line endings problem?

Cc'ing a few random people who might know an owner for this. I'm not even sure what Components to label.