/usr/share/doc/lxc-dev/changelog.Debian.gz is in lxc-dev 3.0.0-0ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/lxc-dev/../liblxc-dev/changelog.Debian.gz
/usr/share/doc/lxc-dev/../liblxc-dev/changelog.Debian.gz