Fix broken command line
Use IP addresses same to examples of wikipedia-search
https://github.com/droonga/wikipedia-search/wiki/%E5%AE%9F%E9%A8%93%E7%92%B0%E5%A2%83%EF%BC%88%E4%BB%AE%E6%83%B3%E7%92%B0%E5%A2%83%EF%BC%89%E3%81%AE%E6%A7%8B%E7%AF%89