doc: fix a typo in unittest.mock.rst (GH-30227) (GH-30263)

(cherry picked from commit 10bf0a9ac3c9bbde2fa8989d9435462f0e7da545)

Co-authored-by: Joe <nigelchiang@outlook.com>

diff --git a/Doc/library/unittest.mock.rst b/Doc/library/unittest.mock.rst
index 3c74b61779d4782f3b1fc4eaf31104186daa6c86..3fbb1b6b83a7600c6a0795b777562311fff1d9b8 100644 (file)
--- a/Doc/library/unittest.mock.rst
+++ b/Doc/library/unittest.mock.rst
@@ -1515,7 +1515,7 @@ attribute in a class) that does not exist will fail with :exc:`AttributeError`::
     >>> test()
     Traceback (most recent call last):
       ...
-    AttributeError: <module 'sys' (built-in)> does not have the attribute 'non_existing'
+    AttributeError: <module 'sys' (built-in)> does not have the attribute 'non_existing_attribute'
 
 but adding ``create=True`` in the call to :func:`patch` will make the previous example
 work as expected::