test: improve test-cluster-net-listen-ipv6only-false#32398

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Trott merged 2 commits intonodejs:masterfrom

Trott:par-cluster

Mar 28, 2020

Commits on Mar 28, 2020

test: replace Map with Array in test-cluster-net-listen-ipv6only-false
Trott
committed
test: use Promise.all() in test-cluster-net-listen-ipv6only-false
Trott
committed