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Werk #10042: Fix exception caused by autochecks with integers as items

Component Core & setup
Title Fix exception caused by autochecks with integers as items
Date Sep 13, 2019
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.0.0i1 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT
1.6.0b10 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

The calculation of check parameters during activate changes or checking could cause an exception like "TypeError: expected string or buffer" when a discovery function of a check created services using integers as items instead of strings.

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