patch 9.0.0681: "<<<" shows for 'smoothscroll' even when 'showbreak is set

Problem:    "<<<" shows for 'smoothscroll' even when 'showbreak is set.
Solution:   When 'showbreak' is set do not display "<<<".
diff --git a/src/version.c b/src/version.c
index 346894d..bd93ff7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    681,
+/**/
     680,
 /**/
     679,