exitCode ::
  ExitCode
  -> Exit.ExitCode
exitCode (IsNotZero a) =
  Exit.ExitFailure (notZero # a)
exitCode ::
  ExitCode
  -> Exit.ExitCode
exitCode (IsNotZero a) =
  Exit.ExitFailure (notZero # a)
exitCode (IsNotZero a) =
  Exit.ExitFailure (notZero # a)