[D-runtime] [D-Programming-Language/druntime] 871de1: update MANIFEST

[Walter Bright]

Brad Roberts wrote:
>
> What I'm objecting to is the removal of by reference inclusion of SRC_D_MODULES into MANIFEST and instead duplicating
> the whole list.  MANIFEST should use references where possible and list only what's unique to the MANIFEST directly.
>
> Makefiles are just as important as source files.. good factoring goes a long way towards maintainability.
>
>   

Fair 'nuf