bgpd: fix for route-maps with "match peer local" statements

A route-map with a 'match peer local' statement it's shown like
'match peer (null)' on config output...

... and it's unparsable on daemon startup.

Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: David Lamparter <equinox@diac24.net>
diff --git a/bgpd/bgp_routemap.c b/bgpd/bgp_routemap.c
index abb85fd..f95cab1 100644
--- a/bgpd/bgp_routemap.c
+++ b/bgpd/bgp_routemap.c
@@ -172,7 +172,7 @@
 
   su = XMALLOC (MTYPE_ROUTE_MAP_COMPILED, sizeof (union sockunion));
 
-  ret = str2sockunion ( (arg)? arg : "0.0.0.0", su);
+  ret = str2sockunion (strcmp(arg, "local") ? arg : "0.0.0.0", su);
   if (ret < 0) {
     XFREE (MTYPE_ROUTE_MAP_COMPILED, su);
     return NULL;
@@ -2430,7 +2430,7 @@
         "Match peer address\n"
         "Static or Redistributed routes\n")
 {
-  return bgp_route_match_add (vty, vty->index, "peer", NULL);
+  return bgp_route_match_add (vty, vty->index, "peer", "local");
 }
 
 DEFUN (no_match_peer,