/usr/share/doc/libnl-route-3-dev/changelog.Debian.gz is in libnl-route-3-dev 3.2.29-0ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libnl-route-3-dev/../libnl-3-200/changelog.Debian.gz