bpo-42811: Update importlib.utils.resolve_name() docs to use __spec__.parent (GH-24100)



Automerge-Triggered-By: GH:brettcannon
diff --git a/Doc/library/importlib.rst b/Doc/library/importlib.rst
index f1c444f..fee5df8 100644
--- a/Doc/library/importlib.rst
+++ b/Doc/library/importlib.rst
@@ -1476,7 +1476,7 @@
 
    If  **name** has no leading dots, then **name** is simply returned. This
    allows for usage such as
-   ``importlib.util.resolve_name('sys', __package__)`` without doing a
+   ``importlib.util.resolve_name('sys', __spec__.parent)`` without doing a
    check to see if the **package** argument is needed.
 
    :exc:`ImportError` is raised if **name** is a relative module name but