Werk #4812: Add missing Acknowledge author to host notifications

Component	Notifications
Title	Add missing Acknowledge author to host notifications
Date	Jul 25, 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

Due to an error in the notification script no Acknowledge author was shown in notification emails.

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