[src] always call dbus_message_iter_close_container
[src] always call dbus_message_iter_close_container

Calling dbus_message_iter_open_container without
dbus_message_iter_close_container e.g. when the message is aborted because
of an error, creates a memory leak.

Signed-off-by: Michael Olbrich <b34f7a3e7f6d3c31a0556e5eddb3e4c1823b7a88@pengutronix.de>

elrafoon/json-dbus-bridge,elrafoon/json-dbus-bridge,elrafoon/json-dbus-bridge