// services are explicitly passed here to account for the heuristics.
func (n *nodeLogQuery) copyServiceLogs(ctx context.Context, w io.Writer, services []string, previousBoot int) {
	cmdStr, args, err := getLoggingCmd(n, services)
	if err != nil {
		fmt.Fprintf(w, "\nfailed to get logging cmd: %v\n", err)
		return
	}
	cmd := exec.CommandContext(ctx, cmdStr, args...)
	cmd.Stdout = w
	cmd.Stderr = w