/usr/share/doc/spf-tools-perl/changelog.Debian.gz is in spf-tools-perl 2.9.0-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/spf-tools-perl/../libmail-spf-perl/changelog.Debian.gz
/usr/share/doc/spf-tools-perl/../libmail-spf-perl/changelog.Debian.gz