def config_files(override)
      files = []
      if override.stringify_keys.key?('config')
        files = override.stringify_keys.delete('config')
        override.delete('config')
      else
        files << source(override) + File::SEPARATOR + DEFAULT_FILENAME
      end
      files = [files] unless files.is_a? Array
      files
    end
def config_files(override)
      files = []
      if override.stringify_keys.key?('config')
        files = override.stringify_keys.delete('config')
        override.delete('config')
      else
        files << source(override) + File::SEPARATOR + DEFAULT_FILENAME
      end
      files = [files] unless files.is_a? Array
      files
    end
Public: Generate list of configuration files from the override

 override - the command-line options hash

 Returns an Array of config files