Merge sysdeps/unix/mman into sysdeps/unix

[Carlos O'Donell]

On Tue, Apr 24, 2012 at 12:26 PM, Roland McGrath <roland@hack.frob.com> wrote:
> That's OK with me though I don't see why it's a priority.

The simpler the project layout the easier it is to bring new
developers up to speed?

I see lots of benefit to simplifying the project layout to account for
the reality of systems that we have people working on.

Cheers,
Carlos.