git: cf3e3d5bd0a1..0c57cb21e0c6 - vendor/ldns - vendor branch updated

[Dag-Erling Smørgrav]

The branch vendor/ldns has been updated by des:

URL: https://cgit.FreeBSD.org/src/log/?id=cf3e3d5bd0a1..0c57cb21e0c6

0c57cb21e0c6 Issue #237 : Resolver uses nameserver commented out in 
/etc/resolv.conf