class RuboCop::Cop::Style::MagicCommentFormat

def fix_directives(issues)
  return if issues.empty?
  msg = format(MSG, style: expected_style)
  issues.each do |directive|
    add_offense(directive, message: msg) do |corrector|
      replacement = replace_separator(replace_capitalization(directive.source,
                                                             directive_capitalization))
      corrector.replace(directive, replacement)
    end
  end
end