patch 8.2.3798: a :def callback function postpones an error message

Problem:    A :def callback function postpones an error message.
Solution:   Display the error after calling the function. (closes #9340)
diff --git a/src/version.c b/src/version.c
index 15f0658..edb1fbe 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3798,
+/**/
     3797,
 /**/
     3796,