IP_PKTINFO socket option not supported

[ericeil]

Tested on build 14905:

setsockopt(..., IP_PKTINFO, ...) seems to always return EINVAL. This causes numerous failures in the .NET Core System.Net.Sockets tests.

[sunilmut]

@ericeil - Thanks for reporting this. This is already being tracked in our pipeline or work to be done. No ETA at this moment.

[sunilmut]

Just an update that a fix for this has been checked in the dev branch and should soon hit the Insider release.