test/run: make -v output look like go test output
test/run: make -v output look like go test output

Among other things, it makes it easier to scan to
see what is slow.

R=golang-dev, bradfitz
CC=golang-dev
https://codereview.appspot.com/40040044

apparentlymart/golang,apparentlymart/golang,apparentlymart/golang,apparentlymart/golang,apparentlymart/golang,apparentlymart/golang,apparentlymart/golang