Werk #11782: ups_out_load check and discovery crash on empty values for load and voltage

Component	Checks & Agents
Title	ups_out_load check and discovery crash on empty values for load and voltage
Date	Dec 28, 2020
Checkmk Editon	Checkmk Raw (CRE)
Checkmk Version	2.0.0b4 2.1.0i1 1.6.0p21
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed

Empty SNMP values for load or values would result in an unhandled exception {{ValueError (invalid literal for int() with base 10: '')}}. This fix checks for empty values first before taking them as numeric values.

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