/usr/share/doc/pfstools/changelog.Debian.gz is in pfstools 2.0.4-5build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/pfstools/../libpfs2/changelog.Debian.gz
/usr/share/doc/pfstools/../libpfs2/changelog.Debian.gz