Werk #4111: hp_proliant: fixed empty data handling

Component	Checks & agents
Title	hp_proliant: fixed empty data handling
Date	Dec 8, 2016
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.2.8p15 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

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