/usr/share/doc/libsquizz-dev/changelog.Debian.gz is in libsquizz-dev 0.99d+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libsquizz-dev/../libsquizz/changelog.Debian.gz
/usr/share/doc/libsquizz-dev/../libsquizz/changelog.Debian.gz