title: Codeigniter custom callback returns message wrapped in paragraph
body: <p>I am using a custom callback in codeigniter and I have a custom error message:</p>
  
  <pre><code>$this-&gt;form_validation-&gt;set_message('_is_startdate_first', 'The start date must be first');
  </code></pre>
  
  <p>When the error message is returned, it is wrapped in '&lt; p>' marks:</p>
  
  <pre><code>&lt;p&gt;The start date must be first&lt;/p&gt;
  </code></pre>
  
  <p>Anyone else have this problem? Would prefer not to change the codeigniter system files if there is a simpler solution.</p>