patch 8.2.1440: debugger code insufficiently tested

Problem:    Debugger code insufficiently tested.
Solution:   Add a few more tests. (Yegappan Lakshmanan, closes #6700)
diff --git a/src/version.c b/src/version.c
index 2955eb0..dc72eb1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1440,
+/**/
     1439,
 /**/
     1438,