All the inc/lang/az/* regular files have exec permissions with no reason. This is harmless but looks weird. Specifically, it does not respect the Debian policy so the Debian package currently uses a special rule to chmod -x them. Better to fix them upstream.
I have prepared a branch in my own repository, so you can simply merge it:
$ git pull git://git.ortolo.eu/pkg-dokuwiki.git
I also attach to this bug report a Git patch, if you prefer to git am it. As you like.