instance method do_accept

# File actionmailer/lib/action_mailer/vendor/tmail-1.2.7/tmail/header.rb, line 812
    def do_accept( strategy )
      if @sub
        strategy.meta sprintf('%s/%s', @main, @sub)
      else
        strategy.meta @main
      end
      @params.each do |k,v|
        if v
          strategy.meta ';'
          strategy.space
          strategy.kv_pair k, unquote(v)
        end
      end
    end