Werk #11901: Fix crash in ESX Inventory

Component	Checks & agents
Title	Fix crash in ESX Inventory
Date	Feb 1, 2021
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.6.0p21 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

The format of the data was changed in WERK 8143, which could possibly result in crashes.

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