Fix docs

Author: cmaloney

Misc/NEWS.d/next/Library/2025-09-09-17-57-49.gh-issue-138720.hAtsm-.rst

@@ -1,3 +1,4 @@
-Fix an issue where :meth:`~BufferedIOBase.close` would think the I/O object was
-open and call :meth:`~BufferedIOBase.flush` but flush would error that the
-file was already closed by making the two functions use the same logic.
+Fix an issue where the :class:`BufferedIOBase` implementation of
+:meth:`~IOBase.close` would think the I/O object was open and call
+:meth:`~IOBase.flush` which would error that the file was already closed by
+making the two implementations use the same logic.