Checkmk Werk 14684: Fixed handling of Livestatus socket specification in livedump/cmc

ID: 14684 Title: Fixed handling of Livestatus socket specification in livedump/cmc Component: Livestatus Level: 1 Class: Bug fix Version: 2.2.0i1 There were a few tiny bugs plus some surprising behavior when specifying the Livestatus socket for livedump/cmcdump. With this change, the rules are simple and consistent now: If there is a -s/--socket commandline option, use that. Otherwise derive the UNIX socket from the OMD_ROOT environment variable if that is set (probably the common case). And finally: If there is no -s/--socket option and no OMD_ROOT, complain and exit.