[Issue 17787] Add a BetterC predefined version so libraries can adapt

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17787

github-bugzilla at puremagic.com changed:

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

--