It should be impossible for the program to exit with SIGCHLD,
but it happens occasionally. Skip the test on Darwin.
For #60316
Change-Id: Idc9d89838e73f077afc42a9703554d61ac7a0069
Reviewed-on: https://go-review.googlesource.com/c/go/+/497055 Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>