patch 8.1.1802: missing change to call_callback()

Problem:    Missing change to call_callback().
Solution:   Add missing change.
diff --git a/src/version.c b/src/version.c
index f769211..6268b8e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -774,6 +774,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1802,
+/**/
     1801,
 /**/
     1800,