Update tests/test_connection.py

Co-authored-by: Níckolas Goline <nickolas.goline@gmail.com>

Author: aryarathoree

tests/test_connection.py

@@ -4817,7 +4817,7 @@ def test_networkevents(node_factory, executor):
     # Connect failed because no listener
     with pytest.raises(
             RpcError,
-            match=r"Connection establishment: (Connection refused|Bad file descriptor)."):
+            match=r"Connection establishment: (Connection refused|Bad file descriptor)\."):
         l1.rpc.connect(l2.info['id'], 'localhost', 1)
 
     nevents = l1.rpc.listnetworkevents(start=5)['networkevents']