/usr/share/doc/linux-cloud-tools-generic-lts-utopic/changelog.gz is in linux-cloud-tools-generic-lts-utopic 4.4.0.21.22.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/linux-cloud-tools-generic-lts-utopic/../linux-cloud-tools-generic/changelog.gz