fetch: mark unused parameter in ref_transaction callback

Since this callback is just trying to collect the set of queued tag
updates, there is no need for it to look at old_oid at all. Mark it as
unused to appease -Wunused-parameter.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/fetch.c b/builtin/fetch.c
index eed4a7cdb6c1d672ab7324ea129d83ea312b688e..8f9352950573948cfdf8c3d260b1117a4286d93b 100644 (file)
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -308,7 +308,7 @@ static void clear_item(struct refname_hash_entry *item)
 
 
 static void add_already_queued_tags(const char *refname,
-                                   const struct object_id *old_oid,
+                                   const struct object_id *old_oid UNUSED,
                                    const struct object_id *new_oid,
                                    void *cb_data)
 {