The URL in the comment was invalid due to a change in the repository directory structure.
That commit is this:
f6113af2d6
Change-Id: I7dcb9c505de0c5ce4f4a2115d48ccb0c6eadbd52
GitHub-Last-Rev: 85c5e3af7ef53611ca8d9ad83f6929e35d114cc6
GitHub-Pull-Request: golang/mobile#42
Reviewed-on: https://go-review.googlesource.com/c/mobile/+/215357
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>