[cleanup] Convert XMALLOC/memset to XCALLOC

Simple conversion of XMALLOC/memset to XCALLOC
diff --git a/ospfd/ospfd.c b/ospfd/ospfd.c
index c951a29..f278488 100644
--- a/ospfd/ospfd.c
+++ b/ospfd/ospfd.c
@@ -1390,9 +1390,8 @@
 {
   struct ospf_nbr_nbma *nbr_nbma;
 
-  nbr_nbma = XMALLOC (MTYPE_OSPF_NEIGHBOR_STATIC,
+  nbr_nbma = XCALLOC (MTYPE_OSPF_NEIGHBOR_STATIC,
 		      sizeof (struct ospf_nbr_nbma));
-  memset (nbr_nbma, 0, sizeof (struct ospf_nbr_nbma));
 
   nbr_nbma->priority = OSPF_NEIGHBOR_PRIORITY_DEFAULT;
   nbr_nbma->v_poll = OSPF_POLL_INTERVAL_DEFAULT;