I&#39;m sure I&#39;ve done something dumb, but I have the following in a typical custom module, in the .module file, and cannot get it to fire. Yes, I&#39;ve cleared cache, and no, it&#39;s not what I *really* want to do in the hook...I just put the exit there to see it fire, since it wasn&#39;t doing anything else I asked it to.<div>
<br></div><div><div>/**</div><div> * Implements hook_menu_alter()</div><div> */</div><div>function mymodule_menu_alter(&amp;$items) {</div><div>    exit;</div><div>}</div></div>