updated for version 7.4.481
Problem:    Compiler warning on MS-Windows.
Solution:   Add type casts. (Ken Takata)
diff --git a/src/version.c b/src/version.c
index 01fdef6..7923a4d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    481,
+/**/
     480,
 /**/
     479,