updated for version 7.4.544

Problem:    Warnings for unused arguments when compiling with a combination of
            features.
Solution:   Add "UNUSED".

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    544,
 /**/
     543,
 /**/