[Issue 21624] Typo in `--DRT` or using `help` does not make the program exit

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21624

--- Comment #1 from dlangBugzillaToGithub <robert.schadek at posteo.de> ---
THIS ISSUE HAS BEEN MOVED TO GITHUB

https://github.com/dlang/dmd/issues/17421

DO NOT COMMENT HERE ANYMORE, NOBODY WILL SEE IT, THIS ISSUE HAS BEEN MOVED TO
GITHUB

--