warning: /usr/go/src/cmd/gc/obj.c:23 format mismatch -10d VLONG, arg 9
warning: /usr/go/src/cmd/gc/plive.c:1680 set and not used: printed
warning: /usr/go/src/cmd/ld/lib.c:332 non-interruptable temporary
warning: /usr/go/src/cmd/ld/lib.c:338 non-interruptable temporary

R=rsc
CC=golang-codereviews
https://golang.org/cl/53820046