Add comments with warnings obtained on NetBSD/i386. Both are due to

size_t being used for streams.  Perhaps cast to unsigned long before
printf?  Surely that's big enough even if size_t could be larger in
theory.

(no changelog, since only comment changes)

bgpd/bgp_attr.c

@@ -1166,6 +1166,7 @@ bgp_attr_parse (struct peer *peer, struct attr *attr, bgp_size_t size,
       /* Check remaining length check.*/
       if (endp - BGP_INPUT_PNT (peer) < BGP_ATTR_MIN_LEN)
 	{
+	  /* XXX warning: long int format, int arg (arg 5) */
 	  zlog (peer->log, LOG_WARNING, 
 		"%s error BGP attribute length %ld is smaller than min len",
 		peer->host, endp - STREAM_PNT (BGP_INPUT (peer)));

bgpd/bgpd.c

@@ -4122,6 +4122,7 @@ peer_uptime (time_t uptime2, char *buf, size_t len)
   /* Check buffer length. */
   if (len < BGP_UPTIME_LEN)
     {
+      /* XXX: warning: long int format, size_t arg (arg 2) */
       zlog_warn ("peer_uptime (): buffer shortage %ld", len);
       /* XXX: should return status instead of buf... */
       snprintf (buf, len, "<error> ");