Actually disable hostname validation on Apple platforms when asked #502
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Motivation:
swift-nio-ssl has long had a flag to disable its own certificate validation behaviour. This flag works fine, and had the desired effect.
However, this flag did not take account of the fact that Security.framework also validates the hostname. Due to an implementation bug, setting .noHostnameVerification disabled only one of the two checks.
Modifications:
Result:
Better, more consistent behaviour.