gpg: Emit an ERROR status if no key was found with --list-keys.

* g10/keylist.c (list_one): Emit status line.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 140fda8c61)

g10/keylist.c

@@ -610,6 +610,7 @@ list_one (ctrl_t ctrl, strlist_t names, int secret, int mark_secret)
     {
       log_error ("error reading key: %s\n", gpg_strerror (rc));
       getkey_end (ctrl, ctx);
+      write_status_error ("keylist.getkey", rc);
       return;
     }