Checkmk Werk 13412: Update manpage for check 'seh_ports'

ID: 13412 Title: Update manpage for check 'seh_ports' Component: Checks & agents Level: 1 Class: Bug fix Version: 2.2.0i1 This check shows the state of the ports of the SEH myUTN dongle server devices. The state of the port is not interpreted by checkmk, only displayed. It is always shown as OK, except when the state changes: If the current port state differs from the state seen at service discovery time, the service will report WARN. To acknowledge the changed port, execute the service discovery again.