[bgpd] fix a couple of trivial compiler warnings

2008-07-22 Paul Jakma <paul.jakma@sun.com>

	* bgp_community.c: (community_str2com) assigns defaults to local
	  vars
	* bgp_attr.c: (bgp_attr_parse) match format specifier to arg
	* bgp_table.{c,h}: (bgp_table_top) can take a * to a const, quelling
	  warning in bgp_route.c
diff --git a/bgpd/bgp_attr.c b/bgpd/bgp_attr.c
index 19a0869..752099d 100644
--- a/bgpd/bgp_attr.c
+++ b/bgpd/bgp_attr.c
@@ -1571,7 +1571,7 @@
           && ((endp - startp) < (BGP_ATTR_MIN_LEN + 1)))
 	{
 	  zlog (peer->log, LOG_WARNING, 
-		"%s Extended length set, but just %u bytes of attr header",
+		"%s Extended length set, but just %lu bytes of attr header",
 		peer->host,
 		(unsigned long) (endp - STREAM_PNT (BGP_INPUT (peer))));