Fixes Seg-Faults if Close is called on a resolver and IPv4/v6 isn't used and update examples/ #433
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Closes #423
A user reached out over email saying that the
resolver.Close
had broken with the recent IPv6 changes. This PR:Close
doesn't panic if we don't have an IPv4 or IPv6 conn objectClose
in ourworker_manager
so that this sort of seg fault would be caught by our CI. (We simply we're callingresolver.Close
beforeexamples/
folder so they compile again with the recent changes around IPv4/v6 resolver validationexamples/
will be caught before PR merge