message: Update dns_lookup.php
diff: @@ -8,10 +8,10 @@ swoole_async_set(array(
  ));
  swoole_async_dns_lookup("www.sina.com.cn", function ($host, $ip)
  {
  - echo "{$host} reslove to {$ip}\n";
  + echo "{$host} resolve to {$ip}\n";
  });
  swoole_async_dns_lookup("www.baidu.com", function ($host, $ip)
  {
  - echo "{$host} reslove to {$ip}\n";
  + echo "{$host} resolve to {$ip}\n";
  });
  