old_contents: 
  def get_package_data():
      return {
          _ASTROPY_PACKAGE_NAME_ + '.tests': ['data/*.fits', 'data/*.npz']
      }
  
new_contents: 
  def get_package_data():
      return {
          _ASTROPY_PACKAGE_NAME_ + '.tests': ['data/*.fits', 'data/*.npz',
                                              'coveragerc']
      }
  
subject: Add coveragerc to package data