}

	return relTag, t
}

// commitID returns the abbreviated commit-id hash of the last commit.
func commitID() string {
	// git log --format="%H" -n1
	var (
		commit []byte
		err    error
	)
	cmdName := "git"
	cmdArgs := []string{"log", "--format=%H", "-n1"}
	if commit, err = exec.Command(cmdName, cmdArgs...).Output(); err != nil {
		fmt.Fprintln(os.Stderr, "Error generating git commit-id: ", err)
		os.Exit(1)
	}