patch 8.1.1331: test 29 is old style

Problem:    Test 29 is old style.
Solution:   Turn it into a new style test. (Yegappan Lakshmanan, closes #4370)
diff --git a/src/version.c b/src/version.c
index 9ce9ab4..c862363 100644
--- a/src/version.c
+++ b/src/version.c
@@ -768,6 +768,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1331,
+/**/
     1330,
 /**/
     1329,