Update Python/errors.c

Co-authored-by: Victor Stinner <vstinner@python.org>

Author: ZeroIntensity

Python/errors.c

@@ -1494,7 +1494,7 @@ write_unraisable_exc_file(PyThreadState *tstate, PyObject *exc_type,
     if (print_exception_fn != NULL && PyCallable_Check(print_exception_fn)) {
         PyObject *args[2] = {exc_value, file};
         PyObject *result = PyObject_Vectorcall(print_exception_fn, args, 2, NULL);
-        int ok = result != NULL;
+        int ok = (result != NULL);
         Py_DECREF(print_exception_fn);
         Py_XDECREF(result);
         if (ok) {