/usr/share/doc/pam-dbus-notify/changelog.Debian.gz is in pam-dbus-notify 0.2.1-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/pam-dbus-notify/../libpam-dbus/changelog.Debian.gz
/usr/share/doc/pam-dbus-notify/../libpam-dbus/changelog.Debian.gz