fix #�106634: minor doc issues in asyncio

Author: Spycho

Lib/asyncio/base_events.py

@@ -727,7 +727,7 @@ def call_later(self, delay, callback, *args, context=None):
         always relative to the current time.
 
         Each callback will be called exactly once.  If two callbacks
-        are scheduled for exactly the same time, it undefined which
+        are scheduled for exactly the same time, it is undefined which
         will be called first.
 
         Any positional arguments after the callback will be passed to

Lib/asyncio/events.py

@@ -617,7 +617,7 @@ class AbstractEventLoopPolicy:
     def get_event_loop(self):
         """Get the event loop for the current context.
 
-        Returns an event loop object implementing the BaseEventLoop interface,
+        Returns an event loop object implementing the AbstractEventLoop interface,
         or raises an exception in case no event loop has been set for the
         current context and the current policy does not specify to create one.