Fix decoding of migrate_pages syscall

* numa.c (SYS_FUNC(migrate_pages)): Print syscall arguments
in the right order.
diff --git a/numa.c b/numa.c
index 0af347d..0ee8b86 100644
--- a/numa.c
+++ b/numa.c
@@ -72,11 +72,10 @@
 
 SYS_FUNC(migrate_pages)
 {
-	tprintf("%d, ", (int) tcp->u_arg[0]);
+	tprintf("%d, %lu, ", (int) tcp->u_arg[0], tcp->u_arg[1]);
 	print_nodemask(tcp, tcp->u_arg[2], tcp->u_arg[1]);
-	tprintf(", %lu, ", tcp->u_arg[1]);
+	tprints(", ");
 	print_nodemask(tcp, tcp->u_arg[3], tcp->u_arg[1]);
-	tprintf(", %lu", tcp->u_arg[1]);
 
 	return RVAL_DECODED;
 }