Addition to unix: raw ByteString APIs

[Herbert Valerio Riedel]

On Fri, 2011-11-11 at 16:23 +0000, Simon Marlow wrote:
> I propose to commit the attached patch to the unix package and release 
> it with GHC 7.4.1.  The commit log is reproduced below.  Comments please!

+1 :-)


Just one minor thing:

>        - There is a new type: RawFilePath = ByteString

Can't that be made a proper type (e.g. via a newtype) instead of being a
mere type-alias?

-- hvr