Rancid OS map - DCN

Hello, we are using some DCN devices (Digital China Networks). The'are supported on Observium according to this document https://docs.observium.org/changelog/ but they are not generated for rancid. I just have added this line

$config['rancid']['os_map']['dcn-os'] = 'cisco';

to definitions.inc.php and it works! (DCNs are cisco like devices).

So please add this line to os map.