Update Doc/library/ast.rst

Doc/library/ast.rst

@@ -2152,7 +2152,7 @@
    body of an :class:`AsyncFunctionDef`.
 
 .. note::
    When a string is parsed by :func:`ast.parse`, operator nodes (subclasses
    of :class:`ast.operator`, :class:`ast.unaryop`, :class:`ast.cmpop`,
    :class:`ast.boolop` and :class:`ast.expr_context`) on the returned tree
    will be singletons. Changes to one will be reflected in all other
@@ -2588,7 +2588,7 @@
 
 .. option:: --show-empty
 
-   Show empty lists and fields that are ``None``. Defaults to showing empty
+   Show empty lists and fields that are ``None``. Defaults to not showing empty
    objects.
 
    .. versionadded:: next