patch 8.2.3803: GUI: crash with 'writedelay' set using a terminal window

Problem:    Crash when 'writedelay' is set and using a terminal window to
            execute a shell command.
Solution:   Check that "tl_vterm" isn't NULL. (closes #9346)
diff --git a/src/version.c b/src/version.c
index 4181019..7af9577 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3803,
+/**/
     3802,
 /**/
     3801,