old_contents: #!/usr/bin/env python
  # coding: utf-8
  
  import setuptools
  setuptools.setup(
      setup_requires=["green", "docutils", "Pygments"],
  )
  
new_contents: #!/usr/bin/env python
  # coding: utf-8
  
  import setuptools
  setuptools.setup(
      extras_requires=["green", "docutils", "Pygments"],
  )
  
subject: rename dependency paramtere for tests to extras_requires, fixes #1