old_contents: """\
  Configuration
  
  Do NOT override the values here.
  Override them using command-line arguments or with a local_config.py instead.
  """
  
  HOST = 'localhost'
  PORT = 5000
  DEBUG = True
  
  STYLE_URLS = [
      'https://a248.e.akamai.net/assets.github.com/assets/github-ca4b92fb3c82a44dad191edddb200e77ea292bba.css',
      'https://a248.e.akamai.net/assets.github.com/assets/github2-e32cf731b09f22ce8beee0954b580b5d8084ff25.css',
  ]
  
new_contents: """\
  Configuration
  
  Do NOT override the values here.
  Override them using command-line arguments or with a local_config.py instead.
  """
  
  HOST = 'localhost'
  PORT = 5000
  DEBUG = True
  
  STYLE_URLS = [
      'https://a248.e.akamai.net/assets.github.com/assets/github-dd95960936fd09bc718d54eac1f1683ed3376505.css',
      'https://a248.e.akamai.net/assets.github.com/assets/github2-69752b2a6bc9496df24286132ccbb217ec68581d.css',
  ]
  
subject: Update CSS locations.