/usr/share/man/man5/sanewall-tarpit.5.gz is in sanewall-doc 1.0.2+ds-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man5/sanewall-actions.5.gz
/usr/share/man/man5/sanewall-actions.5.gz