g10: Support specifying SERIALNO for --card-status.
* g10/gpg.c (main): Allow an argument for --card-status. * g10/card-util.c (current_card_status): Rename from card_status. (card_status): New, which supports multiple cards. (get_one_name): Use current_card_status.
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>