title: How to specify Port Range in 'haproxy' frontend?
body: <p>I have haproxy working, but one port per line is specified. </p>
  
  <pre><code>frontend localhost
      bind *:8443
      bind *:443
      bind *:80
      bind *:8080
  </code></pre>
  
  <p>Say, if I want to specify port range, like <code>30000-35000</code>, how do I do that? I don't want to add 5K lines. </p>