Just double checked that r80969 didn't introduce any other non-whitespace changes: apart from the now-fixed OS X 10.5 SDK issue), the only other non-whitespace change was:

@@ -7018,7 +7023,7 @@
 int
 main ()
 {
-long double x; x = (long double)0.;
+long double x; x = (long double)0;
   ;
   return 0;
 }

which looks harmless to me.