Checkmk Werk 7720: oracle_logswitches: Handle db error maybe provided via the agent output

ID: 7720 Title: oracle_logswitches: Handle db error maybe provided via the agent output Component: Checks & agents Level: 1 Class: Bug fix Version: 1.6.0i1 An agent may potentially provide an output containing an error message resulting from the underlying SQL query. The check does not crash during discovery anymore.