gotest: stop if the // gotest commands fail
gotest: stop if the // gotest commands fail

R=r
http://codereview.appspot.com/166067

apparentlymart/golang,pombredanne/go-deleteme,tianon/debian-golang,pombredanne/go-deleteme,apparentlymart/golang,ssrl/go,dsriram/golang,ssrl/go,pombredanne/go-deleteme,apparentlymart/golang,tv42/old-go,h8liu/golang,tianon/debian-golang,tianon/debian-golang,gnanderson/go,gnanderson/go,bdwalton/debian-golang,dsriram/golang,dsriram/golang,tianon/debian-golang,bdwalton/debian-golang,bdwalton/debian-golang,tianon/debian-golang,tv42/old-go,dsriram/golang,h8liu/golang,nightlyone/golang,apparentlymart/golang,apparentlymart/golang,nightlyone/golang,nightlyone/golang,dsriram/golang,pombredanne/go-deleteme,gnanderson/go,tianon/debian-golang,h8liu/golang,h8liu/golang,apparentlymart/golang,h8liu/golang,nightlyone/golang,tianon/debian-golang,bdwalton/debian-golang,gnanderson/go,h8liu/golang,tv42/old-go,nightlyone/golang,nightlyone/golang,pombredanne/go-deleteme,ssrl/go,h8liu/golang,bdwalton/debian-golang,tv42/old-go,pombredanne/go-deleteme,dsriram/golang,apparentlymart/golang,dsriram/golang,ssrl/go,tv42/old-go,ssrl/go,ssrl/go,gnanderson/go,bdwalton/debian-golang,gnanderson/go,tv42/old-go,bdwalton/debian-golang,tv42/old-go,bdwalton/debian-golang,pombredanne/go-deleteme,tianon/debian-golang,gnanderson/go,ssrl/go,nightlyone/golang