Update pakrd_test

src/pakrd_test.c

@@ -4,8 +4,9 @@
 
 int main(int argc, char *argv[]) {
   pak_read_t *pack = load_asset_pack("assets.pak");
-
-  printf("%p\n", (void *)pack);
+  if (!pack) {
+    return EXIT_FAILURE;
+  }
 
   return EXIT_SUCCESS;
 }