Reword the NEWS entry and versionchanged

A tuple *spec* worked before, except in dir(), so this is a fix, not a
new feature.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

Author: serhiy-storchaka

Doc/library/unittest.mock.rst

@@ -243,7 +243,7 @@ the *new_callable* argument to :func:`patch`.
       allows mocks to pass :func:`isinstance` tests.
 
       .. versionchanged:: next
-         *spec* can now be a tuple of strings.
+         :func:`dir` now works for a mock created with a tuple *spec*.
 
     * *spec_set*: A stricter variant of *spec*. If used, attempting to *set*
       or get an attribute on the mock that isn't on the object passed as

Misc/NEWS.d/next/Library/2026-08-12-14-30-00.gh-issue-80762.Kp3vQa.rst

@@ -1,3 +1,3 @@
-:class:`unittest.mock.Mock` now supports a tuple of strings as *spec*,
-in addition to a list.
-Previously :func:`dir` on such a mock raised :exc:`TypeError`.
+Fix :func:`dir` on :class:`unittest.mock.Mock` objects
+created with a tuple *spec*: it raised :exc:`TypeError`.
+Such *spec* is now also documented.