/usr/share/doc/openhpi-plugin-snmp-bc/README.Debian is in openhpi-plugin-snmp-bc 2.14.1-1.3ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/openhpi-plugin-snmp-bc/../libopenhpi2/README.Debian