missing close() on file on exit path

src/main.c

@@ -581,6 +581,7 @@ int main(int argc, char *argv[])
 		file_chunk[k] = true;
 		data_len += _cli.data_len;
 	}
+	close(fd);
 err:
 	gettimeofday(&tv_stop, NULL);
 	timersub(&tv_stop, &tv_start, &tv);