# File lib/travis/tools/system.rb, line 58
      def ruby
        case ruby_engine
        when 'ruby'  then "Ruby #{ruby_version}"
        when 'jruby' then "JRuby #{JRUBY_VERSION} like Ruby #{ruby_version}"
        when 'rbx'   then "Rubinius #{Rubinius.version[/\d\S+/]} like Ruby #{ruby_version}"
        else              "#{ruby_engine} like Ruby #{ruby_version}"
        end
      end