patch 7.4.1570
Problem:    There is no way to avoid the message when editing a file.
Solution:   Add the "F" flag to 'shortmess'. (Shougo, closes #686)
diff --git a/src/version.c b/src/version.c
index 5695515..f6b1f3b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -744,6 +744,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1570,
+/**/
     1569,
 /**/
     1568,