Werk #6485: fsc_sc2_voltage: Do not discover not-available voltage units

Component	Checks & agents
Title	fsc_sc2_voltage: Do not discover not-available voltage units
Date	Sep 4, 2018
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.6.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.5.0p4 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

Units which are not-available have voltage values 0 V. This may lead to WARN or CRIT because lower or upper device levels are checked.

To the list of all Werks