This version of the builder can handle the new golang.org/x/ paths. LGTM=bradfitz R=bradfitz CC=golang-codereviews https://golang.org/cl/174750043
Rewrite performed with this command: sed -i '' 's_code.google.com/p/go\._golang.org/x/_g' \ $(grep -lr 'code.google.com/p/go.' *) LGTM=rsc R=rsc CC=golang-codereviews https://golang.org/cl/170920043
Update golang/go#8382 LGTM=rsc R=adg, rsc CC=golang-codereviews https://golang.org/cl/150090044