[3.14] pythongh-137526: Fix broken link to drdobbs journal in difflib.rst (pythonGH-137527) (python#137531)

Co-authored-by: Sebastien Williams-Wynn <[email protected]>

Author: 2 people

Doc/library/difflib.rst

@@ -351,9 +351,9 @@ diffs. For comparing directories and files, see also, the :mod:`filecmp` module.
 
 .. seealso::
 
-   `Pattern Matching: The Gestalt Approach <https://www.drdobbs.com/database/pattern-matching-the-gestalt-approach/184407970>`_
+   `Pattern Matching: The Gestalt Approach <https://jacobfilipp.com/DrDobbs/articles/DDJ/1988/8807/8807c/8807c.htm>`_
       Discussion of a similar algorithm by John W. Ratcliff and D. E. Metzener. This
-      was published in `Dr. Dobb's Journal <https://www.drdobbs.com/>`_ in July, 1988.
+      was published in Dr. Dobb's Journal in July, 1988.
 
 
 .. _sequence-matcher: