class RuboCop::Formatter::EmacsStyleFormatter

def file_finished(file, offenses)
  offenses.each do |o|
    output.printf(
      "%<path>s:%<line>d:%<column>d: %<severity>s: %<message>s\n",
      path: file,
      line: o.line,
      column: o.real_column,
      severity: o.severity.code,
      message: message(o)
    )
  end
end