Checkmk Werk 10596: liebert_system_events: Still discover, if no events are present

ID: 10596 Title: liebert_system_events: Still discover, if no events are present Component: Checks & agents Level: 1 Class: Bug fix Version: 1.7.0i1 Due to a regression in version 1.6.0, the "System events" service of Liebert devices could not be discovered if no events were listed at the time of the discovery.