/usr/share/doc/phonon-backend-vlc-dbg/changelog.Debian.gz is in phonon-backend-vlc-dbg 0.8.2-1ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/phonon-backend-vlc-dbg/../phonon-backend-vlc/changelog.Debian.gz