/usr/share/doc/linux-cloud-tools-3.16.0-29-generic/changelog.Debian.gz is in linux-cloud-tools-3.16.0-29-generic 3.16.0-29.39~14.04.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/linux-cloud-tools-3.16.0-29-generic/../linux-lts-utopic-cloud-tools-3.16.0-29/changelog.Debian.gz