ref: dae8be83400216caec8ecda7da7a32f7e48e9a7c
parent: 8849da69a4e556e915c372be825f8cc3b4f775ab
author: Ori Bernstein <ori@eigenstate.org>
date: Wed Aug 20 16:14:36 EDT 2014
Use pid type in sys-osx.myr
This means that we're not only a bit more type safe, we
have enough type compatibility that std.spork() compiles.