[Issue 18857] [std.experimental.logger] use NullLogger as the default

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=18857
Issue 18857 depends on issue 22532, which changed state.

Issue 22532 Summary: std.experimental.logger Change default log level to 
LogLevel.warning, or LogLevel.off
https://issues.dlang.org/show_bug.cgi?id=22532

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

--