Werk #4923: Host diagnostic: Fixed error when saving host with DNS name as IPv4 address

Component	Setup
Title	Host diagnostic: Fixed error when saving host with DNS name as IPv4 address
Date	Jun 29, 2017
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.5.0i1 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

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