/usr/share/doc/kde-telepathy-contact-list-dbg/changelog.Debian.gz is in kde-telepathy-contact-list-dbg 0.8.0-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/kde-telepathy-contact-list-dbg/../kde-telepathy-contact-list/changelog.Debian.gz