gotest: handle \r\n returned by gomake on Windows (fixes build)
gotest: handle \r\n returned by gomake on Windows (fixes build)

R=golang-dev, peterGo, rsc1
CC=Joe Poirier, golang-dev
http://codereview.appspot.com/4370048

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