/usr/share/doc/linux-cloud-tools-4.15.0-22-lowlatency/changelog.Debian.gz is in linux-cloud-tools-4.15.0-22-lowlatency 4.15.0-22.24~16.04.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/linux-cloud-tools-4.15.0-22-lowlatency/../linux-hwe-edge-cloud-tools-4.15.0-22/changelog.Debian.gz