gpg: Fix output of --with-secret if a pattern is given.
* g10/keylist.c (list_one): Probe for a secret key in --with-secret mode.
In contrast to list_all(), list_one() did not tests for a secret key
and took MARK_TRUSTED verbatim as an indication for "secret key
available".
GnuPG-bug: 4061
- Signed-off-by: Werner Koch <wk@gnupg.org>