Check_MK Werk 3942: rstcli: fixed previously failing check, changed check output to provide more information

ID: 3942 Title: rstcli: fixed previously failing check, changed check output to provide more information Component: Checks & Agents Level: 1 Class: Bug Fix Version: 1.4.0i3 The check failed with "unsupported item name". This has been fixed now. Additionally, check output has been changed to provide more information.