updated for version 7.4.534

Problem:    Warnings when compiling if_ruby.c.
Solution:   Avoid the warnings. (Ken Takata)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    534,
 /**/
     533,
 /**/