class Standard::Formatter

def print_todo_warning
  todo_file = options[:todo_file]
  return unless todo_file
  todo_ignore_files = options[:todo_ignore_files]
  return unless todo_ignore_files&.any?
  output.print <<~HEADER
    WARNING: this project is being migrated to standard gradually via `#{todo_file}` and is ignoring these files:
  HEADER
  todo_ignore_files.each do |f|
    output.printf("  %s\n", f)
  end
end