[Issue 17581] Document behavior of -betterC

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17581

--- Comment #2 from github-bugzilla at puremagic.com ---
Commit pushed to stable at https://github.com/dlang/dlang.org

https://github.com/dlang/dlang.org/commit/1fb448587c174137b4e66d6b68313f3f1bdf5808
Merge pull request #1796 from wilzbach/fix-17581

Fix Issue 17581 - Document behavior of -betterC

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