[release-branch.go1.3] go.tools/cmd/godoc: add handlers for new sub-repo paths

««« CL 162470043 / 1e73f4eb4c15
go.tools/cmd/godoc: add handlers for new sub-repo paths

Fixes golang/go#9009.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/162470043
»»»

TBR=rsc
CC=golang-codereviews
https://golang.org/cl/171800043
1 file changed