message: Improved nebula.service
diff: @@ -119,7 +119,8 @@ function start_daemon {
  pid_file=$(get_pid_file_from_config ${config})
  if [[ -f ${pid_file} ]]; then
  if is_process_running ${pid_file}; then
  - ERROR_AND_EXIT "Process already running: $(cat ${pid_file})"
  + ERROR "${daemon_name} already running: $(cat ${pid_file})"
  + return 1
  fi
  fi
  