dns/unbound: Fix loop when ENOBUFS is returned
- Fix send of udp retries when ENOBUFS is returned. It stops looping and also waits for the condition to go away. Reported to upstream by Florian Obser.
PR: 274352, 274446
Approved by: jaap@NLnetLabs.nl (maintainer)
MFH: 2023Q4