Check_MK Werk 6369: Fixed date shown for the first inventory history entry

ID: 6369 Title: Fixed date shown for the first inventory history entry Component: HW/SW Inventory Level: 1 Class: Bug fix Version: 1.6.0i1 Instead of showing 01.01.1970 for the first inventory history entry the view now shows the correct inventory time again. This regression affects all previous 1.5 releases