ospfd: "show ip ospf neighbor" header spacing

The column headers for displaying OSPF neighbors are not aligned,
this patch addresses this issue

Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com>
diff --git a/ospfd/ospf_vty.c b/ospfd/ospf_vty.c
index bf3ed69..3daaaca 100644
--- a/ospfd/ospf_vty.c
+++ b/ospfd/ospf_vty.c
@@ -3117,7 +3117,7 @@
 static void
 show_ip_ospf_neighbour_header (struct vty *vty)
 {
-  vty_out (vty, "%s%15s %3s %-15s %9s %-15s %-20s %5s %5s %5s%s",
+  vty_out (vty, "%s%-15s %3s %-15s %9s %-15s %-20s %5s %5s %5s%s",
            VTY_NEWLINE,
            "Neighbor ID", "Pri", "State", "Dead Time",
            "Address", "Interface", "RXmtL", "RqstL", "DBsmL",