Check_MK Werk 3739: Fix exception in displaying check parameter of grouped interfaces

ID: 3739 Title: Fix exception in displaying check parameter of grouped interfaces Component: WATO Level: 1 Class: Bug Fix Version: 1.4.0i1 In the list of services WATO would show an exception about an invalid key <tt>aggr_item_member</tt>. This has been fixed and the parameter is now correctly being displayed.