Cleanup allocated dns runtime data #4814
Merged
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While harmless, the runtime should clean up non-user allocated data. On the same veign of: #4680
I'm kinda new to Odin and wrote netcat, in order to get a clean valgrind run, one has to manually destroy dns_configuration:
https://github.com/haesbaert/learn-odin/blob/main/netcat/netcat.odin#L168-L169
While here unexport the destroy procedure and make destruction idempotent.