Checkmk Werk 14136: apc_symmetra_test: support alternate date format

ID: 14136 Title: apc_symmetra_test: support alternate date format Component: Checks & agents Level: 1 Class: Bug fix Version: 2.2.0i1 Previously, the check apc_symmetra_test would result in an unknown state, if the data was based on the PowerChute Business Edition. The underlying reason was that we did not implement parsing for the underlying date format correctly.