Update link to supporting references (GH-22488)
diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
index 5cd31b7..45b0302 100644
--- a/Modules/mathmodule.c
+++ b/Modules/mathmodule.c
@@ -2494,7 +2494,7 @@
3. Square root differential correction: https://arxiv.org/pdf/1904.09481.pdf
4. Data dependency graph: https://bugs.python.org/file49439/hypot.png
5. https://www.wolframalpha.com/input/?i=Maclaurin+series+sqrt%28h**2+%2B+x%29+at+x%3D0
-6. Analysis of internal accuracy: https://bugs.python.org/file49435/best_frac.py
+6. Analysis of internal accuracy: https://bugs.python.org/file49484/best_frac.py
7. Commutativity test: https://bugs.python.org/file49448/test_hypot_commutativity.py
*/