Update Lib/asyncio/locks.py

Author: asvetlov

Lib/asyncio/locks.py

@@ -490,7 +490,7 @@ def __init__(self, parties):
         self._state = _BarrierState.FILLING
         self._count = 0       # count tasks in Barrier
         # index number returned when barrier drains
-        self._index = self._parties - 1 
+        self._index = self._parties - 1
 
     def __repr__(self):
         res = super().__repr__()