patch 9.0.0535: closure gets wrong value in for loop with two loop variables

Problem:    Closure gets wrong value in for loop with two loop variables.
Solution:   Correctly compute the number of loop variables to clear.
diff --git a/src/version.c b/src/version.c
index 1b1628e..f7ef299 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    535,
+/**/
     534,
 /**/
     533,