ref: 0c1934dabb9e1f81b8c7c2099f138e17dc772aca
dir: /src/libc/string/strncat.c/
#include <string.h>
#undef strncat
char *
strncat(char * restrict dst, const char * restrict src, size_t n)
{
	char *ret = dst;
	while (*dst)
		++dst;
	while (n-- > 0 && *src)
		*dst++ = *src++;
	*dst = '\0';
	return ret;
}