updated for version 7.4.657

Problem:    Compiler warnings for pointer mismatch.
Solution:   Add a typecast. (John Marriott)

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    657,
 /**/
     656,
 /**/