Fix the Writable implementation for our devnull
Fix the Writable implementation for our devnull

cdgraff/StreamMachine,cdgraff/StreamMachine,SCPR/StreamMachine,SCPR/StreamMachine,StreamMachine/StreamMachine,StreamMachine/StreamMachine,pteich/StreamMachine,pedropapa/StreamMachine,pteich/StreamMachine,pedropapa/StreamMachine