Werk #11397: Fix Service discovery when service checkoutput has values of -inf

Component Setup
Title Fix Service discovery when service checkoutput has values of -inf
Date Jan 11, 2021
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.6.0p21 2.0.0b4 2.1.0b1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

This extends werk 7469, by making sure checkoutputs with values of -inf don't crash the service discovery page.

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