updated for version 7.4.618

Problem:    luaV_setref() is missing a return statement. (Ozaki Kiichi)
Solution:   Put the return statement back.

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    618,
 /**/
     617,
 /**/