net: skip tests on OS X 10.8 to avoid a kernel panic
net: skip tests on OS X 10.8 to avoid a kernel panic

Temporary workaround until the problem is identified and a more
granular skip or fix is added.

Updates golang/go#17015

Change-Id: If3f940f9f318a3b41669fd6e870a17727d2fee82
Reviewed-on: https://go-review.googlesource.com/28587
Reviewed-by: Josh Bleecher Snyder <cdc248cc4d32e4fbfe04e45228163bcecd48a0b9@gmail.com>

golang/net