I missed this in CL 146677.
Change-Id: Ie2735ba15d41e51fd5a99cba97514cd16399abaa
Reviewed-on: https://go-review.googlesource.com/c/147458
Reviewed-by: Ross Light <light@google.com>
Assume Go 1.9+, which is broader than Go's current Go 1.10+ support policy.
Change-Id: I9fe6954d21c2279cf4ea7da4d5bc7a9290a3bae2
Reviewed-on: https://go-review.googlesource.com/c/146677
Reviewed-by: Ross Light <light@google.com>