updated for version 7.4.671
Problem:    Warning for shadowing a variable.
Solution:   Rename off to mb_off. (Kazunobu Kuriyama)
diff --git a/src/version.c b/src/version.c
index af86a17..405b8a7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    671,
+/**/
     670,
 /**/
     669,