/usr/share/help/de/aisleriot/gaps.xml is in aisleriot 1:3.2.3.2-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/help/de/aisleriot/../../../help-langpack/de/aisleriot/gaps.xml
/usr/share/help/de/aisleriot/../../../help-langpack/de/aisleriot/gaps.xml