title: Replace a line in a config file with ansible
body: <p>I am new to ansible.</p>
  
  <p>Is there a simple way to replace the line starting with <code>option domain-name-servers</code> in <code>/etc/dhcp/interface-br0.conf</code> with more IPs?</p>
  
  <pre><code>  option domain-name-servers 10.116.184.1,10.116.144.1;
  </code></pre>
  
  <p>I want to add <code>,10.116.136.1</code></p>