lib: fix logging of ZEBRA_HELLO message
diff --git a/lib/log.c b/lib/log.c
index 7edc5c4..3d905f4 100644
--- a/lib/log.c
+++ b/lib/log.c
@@ -843,6 +843,7 @@
   DESC_ENTRY	(ZEBRA_ROUTER_ID_ADD),
   DESC_ENTRY	(ZEBRA_ROUTER_ID_DELETE),
   DESC_ENTRY	(ZEBRA_ROUTER_ID_UPDATE),
+  DESC_ENTRY	(ZEBRA_HELLO),
 };
 #undef DESC_ENTRY