[Issue 17985] Implement -stdin for rdmd

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17985

Andre <andre at s-e-a-p.de> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #7 from Andre <andre at s-e-a-p.de> ---
As rdmd is deprecated, I will close this issue. In the meantime this feature
was also added to dub.

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