Fix various issues (mostly Python 2 relics) found by Jacques Ducasse.
diff --git a/Doc/library/operator.rst b/Doc/library/operator.rst
index efefaa6..87f5241 100644
--- a/Doc/library/operator.rst
+++ b/Doc/library/operator.rst
@@ -19,8 +19,7 @@
trailing ``__`` are also provided for convenience.
The functions fall into categories that perform object comparisons, logical
-operations, mathematical operations, sequence operations, and abstract type
-tests.
+operations, mathematical operations and sequence operations.
The object comparison functions are useful for all objects, and are named after
the rich comparison operators they support: