dmd path handling is a bit dated

Fri Oct 6 20:20:49 UTC 2017

On Friday, October 06, 2017 20:11:25 Laeeth Isharc via Digitalmars-d-learn 
wrote:
> And I'm posting here because we can submit a pull request, but I
> didn't know whether to call Phobos or copy/paste as I haven't
> submitted more than trivial doc changes to compiler.  I've
> written all of this up but on an internal gitlab.

dmd is not currently allowed to use Phobos, because they don't want that
dependency. But it shouldn't be a problem to copy over Phobos'
implementation of something where appropriate.

- Jonathan M Davis