ref: d4f9d2c95f2fcc650b00fc39e6690df9ed953c89
dir: /src/libc/stdio/vprintf.c/
#include <stdarg.h>
#include <stdio.h>
#undef vprintf
int
vprintf(const char * restrict fmt, va_list ap)
{
va_list ap2;
va_copy(ap2, ap);
return vfprintf(stdout, fmt, ap2);
}