cmd/go: use correct paths with race detector Currently the build fails with -race if a package in GOPATH imports another package in GOPATH.
cmd/go: use correct paths with race detector
Currently the build fails with -race if a package in GOPATH
imports another package in GOPATH.

R=golang-dev, r
CC=golang-dev
http://codereview.appspot.com/6811083

dsriram/golang,tv42/old-go,gnanderson/go,pombredanne/go-deleteme,gnanderson/go,dsriram/golang,dsriram/golang,tv42/old-go,apparentlymart/golang,dsriram/golang,apparentlymart/golang,pombredanne/go-deleteme,apparentlymart/golang,tv42/old-go,apparentlymart/golang,dsriram/golang,pombredanne/go-deleteme,apparentlymart/golang,pombredanne/go-deleteme,pombredanne/go-deleteme,apparentlymart/golang,dsriram/golang,tv42/old-go,apparentlymart/golang,dsriram/golang,gnanderson/go,gnanderson/go,pombredanne/go-deleteme,pombredanne/go-deleteme,tv42/old-go,gnanderson/go,tv42/old-go,gnanderson/go,tv42/old-go,gnanderson/go