Checkmk Werk 7498: tsm_scratch: Prevent crash due to unusual agent output

ID: 7498 Title: tsm_scratch: Prevent crash due to unusual agent output Component: Checks & agents Level: 1 Class: Bug fix Version: 1.6.0i1 It is know that the agent output may contain warnings resulting from queries of the tape monitored storage device. This lead to crashes of the check during discovery. This werk fixes this issue.