https://issues.dlang.org/show_bug.cgi?id=20644

          Issue ID: 20644
           Summary: Invalid printf deprecation for ubyte passed to "%hhu"
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: moonlightsentinel@disroot.org

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import core.stdc.stdio : printf;

void main() {
  ubyte wsize;
  printf("%hhu\n", wsize);
}

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Deprecation: argument cast(int) wsize for format specification "%hhu" must be
byte, not int

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