Fix white space

Author: iaalm

Lib/test/test_asyncio/test_tasks.py

@@ -3696,7 +3696,7 @@ async def target():
         # .BaseProactorEventLoop._loop_self_reading as ready task
         # We should filter it out.
         ready_tasks = [
-            i for i in self.loop._ready 
+            i for i in self.loop._ready
             if i._callback.__name__ != "_loop_self_reading"]
         self.assertEqual(0, len(ready_tasks))