Use the final patch/bug numbers

Doc/whatsnew/whatsnew22.tex

@@ -1260,10 +1260,9 @@ affect you very much.
 %======================================================================
 \section{Other Changes and Fixes}
 
-% XXX update the patch and bug figures as we go
 As usual there were a bunch of other improvements and bugfixes
 scattered throughout the source tree.  A search through the CVS change
-logs finds there were 312 patches applied, and 391 bugs fixed; both
+logs finds there were 527 patches applied, and 683 bugs fixed; both
 figures are likely to be underestimates.  Some of the more notable
 changes are: