This aligns the naming scheme with the testing package and
also lets govet work on more logging calls.
R=rsc
CC=golang-dev
https://golang.org/cl/4001048
make test.sh runnable as a command.
announce only on 127.0.0.1.
rebuild final-test.bin when final-test.go changes.
R=adg, r
CC=golang-dev
https://golang.org/cl/4030044