Translate Mac OS DA dissenter errors to UNIX errno, to expose on the `Error` as `error.code` etc. Details: http://stackoverflow.com/questions/8565302/interpret-return-value-dissenter-when-trying-to-unmount-volume-in-os-x
Translate Mac OS DA dissenter errors to UNIX errno, to expose on the
Erroraserror.codeetc.Details: http://stackoverflow.com/questions/8565302/interpret-return-value-dissenter-when-trying-to-unmount-volume-in-os-x