[Issue 18145] Phobos makefile incorrectly sets --dip1000 for DMD when BUILD=debug

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18145

Seb <greeenify at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |greeenify at gmail.com

--- Comment #4 from Seb <greeenify at gmail.com> ---
https://github.com/dlang/phobos/pull/6931 will fix this as it activated
-dip1000 for all build types.

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