updated for version 7.4.685

Problem:    When there are illegal utf-8 characters the old regexp engine may
            go past the end of a string.
Solution:   Only advance to the end of the string. (Dominique Pelle)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    685,
 /**/
     684,
 /**/