nl2br second parameter doesn't work
<p>This:</p>

<pre><code>var_dump(nl2br("aaa\naaa", false));
</code></pre>

<p>Outputs:</p>

<pre><code>NULL
</code></pre>

<p>I am using PHP Version 5.2.13. Doctype is:</p>

<pre><code>&lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"&gt;
</code></pre>
