cmd.Dir = rdir
	cmd.Env = updateGoCoverDir(os.Environ(), rdir, setGoCoverDir)
	b, err := cmd.CombinedOutput()
	//t.Logf("harness run output: %s\n", string(b))
	return string(b), err
}

func testForSpecificFunctions(t *testing.T, dir string, want []string, avoid []string) string {
	args := []string{"tool", "covdata", "debugdump",
		"-live", "-pkg=command-line-arguments", "-i=" + dir}
	t.Logf("running: go %v\n", args)