list_keyblock_print, list_keyblock_colon), status.h, status.c
(get_status_string): New --attribute-fd feature to dump the contents of
attribute subpackets for frontends. If --status-fd is also used, then a
new status tag ATTRIBUTE is provided for each subpacket.
* packet.h, getkey.c (fixup_uidnode, merge_selfsigs_main,
merge_selfsigs_subkey), parse-packet.c (setup_user_id): Keep track of the
expiration time of a user ID, and while we're at it, use the expired flag
from the selfsig rather than reparsing the SIG_EXPIRE subpacket.
* photoid.c (generate_photo_id): When adding a new photo ID, showing the
photo for confirmation is not safe when noninteractive since the "user"
may not be able to dismiss a viewer window. Noted by Timo Schulz.
"deprecated-use-keyexpired-instead" to SIGEXPIRED.
Start transition from SIGEXPIRED to KEYEXPIRED, since the actual event is
signature verification by an expired key and not an expired signature.
Rename do_signature_check as signature_check2, make public, and change all
callers.
Use status EXPSIG for an expired, but good, signature. Add the expiration
time (or 0) to the VALIDSIG status line. Use status KEYEXPSIG for a good
signature from an expired key.
Remove checks for no arguments now that argparse does it.
