old_contents: #!/usr/bin/env python
  # Copyright (c) 2014 lda developers
  #
  # This Source Code Form is subject to the terms of the Mozilla Public
  # 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/.
  
  import setuptools
  
  setuptools.setup(
      setup_requires=['pbr'],
      pbr=True)
  
new_contents: #!/usr/bin/env python
  # Copyright (c) 2014 lda developers
  #
  # This Source Code Form is subject to the terms of the Mozilla Public
  # 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/.
  
  import setuptools
  
  setuptools.setup(
      setup_requires=['pbr'],
      pbr=True,
  )
  
subject: Improve formatting in setup.py