class RuboCop::OptionsValidator

def format_message_from(name, cop_names)
  message = 'Unrecognized cop or department: %<name>s.'
  message_with_candidate = "%<message>s\nDid you mean? %<candidate>s"
  corrections = NameSimilarity.find_similar_names(name, cop_names)
  if corrections.empty?
    format(message, name: name)
  else
    format(message_with_candidate, message: format(message, name: name),
                                   candidate: corrections.join(', '))
  end
end