message change

main.c

 
 	cinfo->dest->next_output_byte = imgbuf + imgbuflen;
 	cinfo->dest->free_in_buffer = imgbufsize - imgbuflen;
-	printf("grew buf to %zu, free space now %zu\n", imgbufsize, cinfo->dest->free_in_buffer);
+	printf("grew buffer to %zu\n", imgbufsize);
 	return TRUE;
 }