Werk #4445: cisco_cpu: Fixed crash if values are empty

Component	Checks & agents
Title	cisco_cpu: Fixed crash if values are empty
Date	Mar 13, 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) 1.4.0b4 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.2.8p19 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

The checkplugin now also deals with empty values. See werk #2088 for more information.

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