title: how to specify query string in url with apache bench
body: <p>My rails application is running on thin server which i want to benchmark using apachebench   </p>
  
  <p>the command am using is </p>
  
  <pre><code>ab -n 1 -c 1 http://localhost:3001/welcome/search?query="doctor"&amp;rad=5
  </code></pre>
  
  <p>But thin server is not taking this url.Its giving</p>
  
  <pre><code>!! Invalid Request
  </code></pre>
  
  <p>Can any one help me how to give the url such that thin accepts the url with query string</p>