[Issue 14367] Print warnings by default

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=14367

--- Comment #6 from Sobirari Muhomori <dfj1esp02 at sneakemail.com> ---
Warnings can work as out of line code style checkers. Breaking compilation on
enabled warnings doesn't work well for this.

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