Werk #4375: check_sql: Fixed reporting configuration issues to monitoring core

Component	Checks & agents
Title	check_sql: Fixed reporting configuration issues to monitoring core
Date	Feb 17, 2017
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.5.0i1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.4.0b3 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.2.8p18 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

The plugin was writing it's textual output to stderr in case of errors or configuration problems which is not processed by the core. So the plugin output could be empty.

To the list of all Werks