freemind_render_node doesn't include "?q=" in node LINKs

Using drupal version 4.7.3 and Freemind module version 1.2 2006/05/21 12:22:42, I do:

->create freemind map
[X] Include taxonomy links?
[X] Include nodes?
->Generate map

But the node links that get generated don't work. It looks like they're simply missing "?q=" before the "taxonomy" or "node" part of their URL. I've included a two line patch so that generating a site map renders node links that I can follow.