When printf "%g" with trailing 0 number, decial point be printed.

C lang's printf function doesn't print decimal point if only trailing 0s. But GHC does.

Prelude Text.Printf> :m + Text.Printf
Prelude Text.Printf> printf "%g\n" 2.0
2.0

#include <stdio.h>

int main() {
  printf("%g\n", 2.0);
  return 0;
}
// output: 2

Is this bug? Should printf be compatible with C?

Trac metadata

Trac field	Value
Version	8.0.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	libraries/base
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