patch 8.2.1089: Coverity warns for pointer computation

Problem:    Coverity warns for pointer computation.
Solution:   Avoid computing a pointer to invalid memory.
diff --git a/src/version.c b/src/version.c
index 48ff321..fdf0504 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1089,
+/**/
     1088,
 /**/
     1087,