Extra Do53 listeners when enabling DoT/DoH

[A. Schulze]

Am 08.02.23 um 17:35 schrieb Simon Deziel via Unbound-users:
> Is is expected for Unbound (1.17.1) to create UDP/853 and UDP/443 listeners when enabling DoT and DoH? AFAIK, those are supposed to work over TCP only. Also, it seems that those are Do53 UDP listeners.

I never noted these unexpected listeners, but they are active here, too.
And yes, the work as Do53.

I also think, they shouldn't be there...

Andreas