patch 8.1.0829: when 'hidden' is set session creates extra buffers

Problem:    When 'hidden' is set session creates extra buffers.
Solution:   Move :badd commands to the end. (Jason Franklin)
diff --git a/src/version.c b/src/version.c
index 9fa0ba4..af28903 100644
--- a/src/version.c
+++ b/src/version.c
@@ -784,6 +784,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    829,
+/**/
     828,
 /**/
     827,