Indentation in a custom TraceListener
<p>How should I implement supporting indentation in a custom TraceListener?</p>

<pre><code>Trace.Indent();
// or
Trace.Unindent();
</code></pre>

<p>Does not work even if there is an implementation for:</p>

<pre><code>protected override void WriteIndent() { ... }
</code></pre>

<p>In that custom TraceListener.</p>

<p>Am I missing something?</p>
