팬 정책 데몬 전환과 관측 로그 정리

systemd/control-wifi-observe.service

@@ -8,5 +8,5 @@ User=root
 Group=root
 WorkingDirectory=/var/www/control
 ExecStart=/usr/bin/php /var/www/control/bin/wifi_observe.php
-StandardOutput=append:/var/log/control-wifi-observe.log
-StandardError=append:/var/log/control-wifi-observe.log
+StandardOutput=null
+StandardError=journal