init: supress sv check output (#1545)

conf/init/service/security_notification_worker/log/run

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 # Ensure dependencies start before the logger
-sv check syslog-ng || exit 1
+sv check syslog-ng > /dev/null || exit 1
 
 # Start the logger
 exec logger -i -t security_notification_worker