patch 8.1.0920: in Terminal-Normal mode job output messes up the window

Problem:    In Terminal-Normal mode job output messes up the window.
Solution:   Postpone scrolling and updating the buffer when in Terminal-Normal
            mode.
diff --git a/src/version.c b/src/version.c
index 30b78e5..e3ec215 100644
--- a/src/version.c
+++ b/src/version.c
@@ -784,6 +784,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    920,
+/**/
     919,
 /**/
     918,