Check_MK Werk 6758: mknotifyd: Fixed crash if the mknotify check sends no data

ID: 6758 Title: mknotifyd: Fixed crash if the mknotify check sends no data Component: Checks & agents Level: 1 Class: Bug fix Version: 1.6.0i1 The check previously crashed, if the agent sends a site name but no data for this site. If there is no data, this will be displayed now in the service output. Additionally the service will change it's state to WARN because there is no data for the last update time of mknotify state file.