patch 8.2.3984: debugger test fails

Problem:    Debugger test fails.
Solution:   Adjust the test for modified debugging of a for loop.
diff --git a/src/version.c b/src/version.c
index 77c6f12..597913f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3984,
+/**/
     3983,
 /**/
     3982,