<enter reason for undo>

««« original CL description
runtime/race: fix the link for the race detector.

LGTM=bradfitz
R=golang-dev, bradfitz
CC=golang-codereviews
https://golang.org/cl/100330043

»»»

TBR=minux
R=minux.ma
CC=golang-codereviews
https://golang.org/cl/96200044