gpg: Change keydb_search to not return legacy keys.
* g10/keyring.c (keyring_search): Take new argument, ignore_legacy. If set, skip any legacy keys. Update callers. * g10/keydb.c (keydb_search): Skip any legacy keys. (keydb_search_first): Don't skip legacy keys. Treat them as an error. (keydb_search_next): Likewise. (keydb_search_fpr): Likewise. * g10/export.c (do_export_stream): Likewise. * g10/getkey.c (lookup): Likewise. (have_secret_key_with_kid): Likewise. * g10/keylist.c (list_all): Likewise. (keyring_rebuild_cache): Likewise. * g10/keyserver.c (keyidlist): Likewise. * g10/trustdb.c (validate_key_list): Likewise.
- Signed-off-by: Neal H. Walfield <neal@g10code.com>