ref: fb8dbbcf81b73f635d9269048a6a1e09c029c1ed
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);
}