/usr/share/doc/libvirt-dev/changelog.gz is in libvirt-dev 1.2.9-9+deb8u5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libvirt-dev/../libvirt0/changelog.gz
/usr/share/doc/libvirt-dev/../libvirt0/changelog.gz