add units to --expected-lifetime , add warning to any input that accepts bare number wihout units
--expected-lifetime takes 'short','medium','long', or a number, in seconds. Change the number input to accept units, ie --expected-lifetime=24h or --expected-lifetime=2d . If the input is unitless, complain but convert to default listed in help. Warn for other inputs like --timeout that accept a number, accept it but complain there are no units. Eventually units will be made mandatory.