patch 9.0.1129: sporadic Test_range() failure

Problem:    Sporadic Test_range() failure.
Solution:   Clear typeahead.  Move to a separate function. (issue #22771)
diff --git a/src/version.c b/src/version.c
index 5efbf60..cb4889d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1129,
+/**/
     1128,
 /**/
     1127,