Conform to PEP 7 on changed line.

Co-authored-by: Stan Ulbrych <[email protected]>

Author: jhohm

Modules/_datetimemodule.c

@@ -5539,8 +5539,9 @@ datetime_best_possible(PyObject *cls, TM_FUNC f, PyObject *tzinfo)
     time_t secs;
     int us;
 
-    if (_PyTime_AsTimevalTime_t(ts, &secs, &us, _PyTime_ROUND_HALF_EVEN) < 0)
+    if (_PyTime_AsTimevalTime_t(ts, &secs, &us, _PyTime_ROUND_HALF_EVEN) < 0) {
         return NULL;
+    }
     assert(0 <= us && us <= 999999);
 
     return datetime_from_timet_and_us(cls, f, secs, us, tzinfo);