ospfd: fix non-zero metric when describing loopback addresses

Fixes Quagga Bugzilla #842

Change-Id: Iff33d70089d1393bf3e9c757d9e9faf134699121
Signed-off-by: kitty <khiruthigai.balasubramanian@hpe.com>
Tested-by: NetDEF CI System <cisystem@netdef.org>
Acked-by: Donald Sharp <sharpd@cumulusnetworks.com>
diff --git a/ospfd/ospf_lsa.c b/ospfd/ospf_lsa.c
index 634bc43..c1b1e0e 100644
--- a/ospfd/ospf_lsa.c
+++ b/ospfd/ospf_lsa.c
@@ -624,7 +624,7 @@
 
   mask.s_addr = 0xffffffff;
   id.s_addr = oi->address->u.prefix4.s_addr;
-  return link_info_set (s, id, mask, LSA_LINK_TYPE_STUB, 0, oi->output_cost);
+  return link_info_set (s, id, mask, LSA_LINK_TYPE_STUB, 0, 0);
 }
 
 /* Describe Virtual Link. */