MsgHandler: fixes for full-width fmt format field
MsgHandler: fixes for full-width fmt format field

peterbarker/dronekit-la,dronekit/dronekit-la,peterbarker/dronekit-la,peterbarker/dronekit-la,dronekit/dronekit-la,peterbarker/dronekit-la,dronekit/dronekit-la,dronekit/dronekit-la