[Issue 21774] "formatException is not constant" instead of "static assert error"

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21774

Berni44 <bugzilla at bernis-buecher.de> changed:

           What    |Removed                     |Added
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            Summary|formatException is not      |"formatException is not
                   |constant instead of static  |constant" instead of
                   |assert error                |"static assert error"

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