* keyedit.c (print_and_check_one_sig, show_key_and_fingerprint,

menu_addrevoker), keylist.c (list_keyblock_print, print_fingerprint): Show
"T" or the trust depth for trust signatures, and add spaces to some
strings to make room for it.

* packet.h, parse-packet.c (dump_sig_subpkt, parse_one_sig_subpkt,
parse_signature): Parse trust signature values.

* tdbio.h, tdbio.c (tdbio_read_record, tdbio_write_record): Reserve a byte
for the minimum ownertrust value (for use with trust signatures).

g10/tdbio.h

@@ -77,6 +77,7 @@ struct trust_record {
         byte ownertrust;
         byte depth;
         ulong validlist;
+	byte min_ownertrust;
       } trust;
       struct {
         byte namehash[20];