dns: fix cares memory leak
fix cares memory leak.
I have a question that the function AfterGetAddrInfo
return directly when IsNothing
is true , is it expected? this make the callback of dns.lookup
never be called.
cc @addaleax Refs: https://github.com/nodejs/node/pull/39735
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make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines