/usr/share/help/ja/totem/legal.xml is in totem-common 3.18.1-1ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/help/ja/totem/../../../help-langpack/ja/totem/legal.xml
/usr/share/help/ja/totem/../../../help-langpack/ja/totem/legal.xml