Fix wrong issue number.
 (backport from rev. 55735)
diff --git a/Misc/NEWS b/Misc/NEWS
index 1757bff..4d1ca27 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -58,7 +58,7 @@
 Core and builtins
 -----------------
 
-- Bug #1722484: remove docstrings again when running with -OO.
+- Bug #1722485: remove docstrings again when running with -OO.
 
 - Revert SF #1615701: dict.update() does *not* call __getitem__() or keys()
   if subclassed.  This is to remain consistent with 2.5.