/usr/share/doc/freeradius/changelog.Debian.gz is in freeradius 3.0.16+dfsg-1ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/freeradius/../freeradius-config/changelog.Debian.gz
/usr/share/doc/freeradius/../freeradius-config/changelog.Debian.gz