[PATCH] handsfree-audio: use correct signature for GetCards

Match the signature for GetCards to the structure of the dbus container
as found in the am_get_cards function, as well as in the documentation
for the handsfree api.
---
 src/handsfree-audio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/handsfree-audio.c b/src/handsfree-audio.c
index 27d8331a..89b36584 100644
--- a/src/handsfree-audio.c
+++ b/src/handsfree-audio.c
@@ -813,7 +813,7 @@ static DBusMessage *am_agent_unregister(DBusConnection *conn,
 
 static const GDBusMethodTable am_methods[] = {
 	{ GDBUS_METHOD("GetCards",
-			NULL, GDBUS_ARGS({"cards", "a{oa{sv}}"}),
+			NULL, GDBUS_ARGS({"cards", "a(oa{sv})"}),
 			am_get_cards) } ,
 	{ GDBUS_METHOD("Register",
 			GDBUS_ARGS({"path", "o"}, {"codecs", "ay"}), NULL,
-- 
2.47.1