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)
diff --git a/src/version.c b/src/version.c
index f4ed01a..6156c37 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    685,
+/**/
     684,
 /**/
     683,