/usr/share/doc/libfap-dev/changelog.Debian.gz is in libfap-dev 1.5-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libfap-dev/../libfap6/changelog.Debian.gz
/usr/share/doc/libfap-dev/../libfap6/changelog.Debian.gz