class RuboCop::CLI::Command::ShowDocsUrl

def print_documentation_url
  puts Cop::Documentation.default_base_url if cops_array.empty?
  cops_array.each do |cop_name|
    cop = registry_hash[cop_name]
    next if cop.empty?
    puts Cop::Documentation.url_for(cop.first, @config)
  end
  puts
end