patch 9.0.0569: cannot easily get out when using "vim file | grep word"

Problem:    Cannot easily get out when using "vim file | grep word".
Solution:   Without changes let CTRL-C exit Vim.  Otherwise give a message on
            stderr. (closes #11209)

src/version.c

@@ -699,6 +699,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    569,
 /**/
     568,
 /**/