At
http://tonybaldwin.me/hax, using dokuwiki release 2012-01-25a "Angua" and the spacedok template (a modified minima, essentially, created by me, but I did nothing to any element related to licensing), the license link/button links to
http://creativecommons.org/licenses/by-nc-sa/2.0/
I never chose this license, but had set for CC-BY-SA (attribution, share alike, unported 3.0).
So, I just changed (in configuration settings) to Gnu Documentation License, and still, the link is wrong (and, in fact, still shows the CC button, even when I've selected the non-CC, Gnu license).
So configuring the license in admin->configuration settings is unproductive, and does not change the license link (or icon/button).