Issue #22232 (partial fix): update Universal newlines Glossary entry.

Doc/glossary.rst

@@ -848,7 +848,7 @@ Glossary
       recognized as ending a line: the Unix end-of-line convention ``'\n'``,
       the Windows convention ``'\r\n'``, and the old Macintosh convention
       ``'\r'``.  See :pep:`278` and :pep:`3116`, as well as
-      :func:`str.splitlines` for an additional use.
+      :func:`bytes.splitlines` for an additional use.
 
    view
       The objects returned from :meth:`dict.keys`, :meth:`dict.values`, and