lib: Cleanup uninted `top` variable in ferr.c

The `top` variable could possibly be used without
any initialization, remove the possibility.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

diff --git a/lib/ferr.c b/lib/ferr.c
index d1b9d514b468e8d7d63159644d0b68e3ef0efa38..17ec51c4bfa9138b7c3b1646fe91b45075caafec 100644 (file)
--- a/lib/ferr.c
+++ b/lib/ferr.c
@@ -107,7 +107,7 @@ struct log_ref *log_ref_get(uint32_t code)
 void log_ref_display(struct vty *vty, uint32_t code, bool json)
 {
        struct log_ref *ref;
-       struct json_object *top, *obj;
+       struct json_object *top = NULL, *obj = NULL;
        struct list *errlist;
        struct listnode *ln;