- add some ATTRIBUTE_UNUSED.

- use shorter boilerplate while at it.

networking/libiproute/utils.c

@@ -1,14 +1,10 @@
 /*
  * utils.c
  *
- *		This program is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  *
  * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
  *
- *
  * Changes:
  *
  * Rani Assaf <rani@magic.metawire.com> 980929:	resolve addresses
@@ -321,7 +317,8 @@ int __get_hz(void)
 	return sysconf(_SC_CLK_TCK);
 }
 
-const char *rt_addr_n2a(int af, int len, void *addr, char *buf, int buflen)
+const char *rt_addr_n2a(int af, int ATTRIBUTE_UNUSED len,
+		void *addr, char *buf, int buflen)
 {
 	switch (af) {
 	case AF_INET: