While it's true that CL 168479 was also backported to 1.12, this is
irrelevant for the Go1.13 release notes.

Change-Id: I044be69f8f2bc005f58a0d63db05129add15f674
Reviewed-on: https://go-review.googlesource.com/c/go/+/186138Reviewed-by: Ian Lance Taylor <iant@golang.org>