/usr/share/doc/rsyslog-pgsql/changelog.Debian.gz is in rsyslog-pgsql 8.16.0-1ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/rsyslog-pgsql/../rsyslog/changelog.Debian.gz
/usr/share/doc/rsyslog-pgsql/../rsyslog/changelog.Debian.gz