Bug 453618 - Trace unsuccessful DSF Request Monitor at done()

Change-Id: Ia0191fedc9e2dcbcfa244636fbff7b0a640044d1
Reviewed-on: https://git.eclipse.org/r/37320
Tested-by: Hudson CI
Reviewed-by: Marc Khouzam <marc.khouzam@ericsson.com>
Tested-by: Marc Khouzam <marc.khouzam@ericsson.com>