Add new option --with-secret.

* g10/gpg.c: Add option --with-secret.
* g10/options.h (struct opt): Add field with_secret.
* g10/keylist.c (public_key_list): Pass opt.with_secret to list_all
and list_one.
(list_all, list_one): Add arg mark_secret.
(list_keyblock_colon): Add arg has_secret.
* sm/gpgsm.c: Add option --with-secret.
* sm/server.c (option_handler): Add option "with-secret".
* sm/gpgsm.h (server_control_s): Add field with_secret.
* sm/keylist.c (list_cert_colon): Take care of with_secret.  Also move
the token string from the wrong field 14 to 15.
--

This option is useful for key managers which need to know whether a
key has a secret key.  This change allows to collect this information
in one pass.

g10/gpg.c

@@ -176,6 +176,7 @@ enum cmd_and_opt_values
     oFingerprint,
     oWithFingerprint,
     oWithKeygrip,
+    oWithSecret,
     oAnswerYes,
     oAnswerNo,
     oKeyring,
@@ -705,6 +706,7 @@ static ARGPARSE_OPTS opts[] = {
   ARGPARSE_s_n (oNoUtf8Strings, "no-utf8-strings", "@"),
   ARGPARSE_s_n (oWithFingerprint, "with-fingerprint", "@"),
   ARGPARSE_s_n (oWithKeygrip,     "with-keygrip", "@"),
+  ARGPARSE_s_n (oWithSecret,      "with-secret", "@"),
   ARGPARSE_s_s (oDisableCipherAlgo,  "disable-cipher-algo", "@"),
   ARGPARSE_s_s (oDisablePubkeyAlgo,  "disable-pubkey-algo", "@"),
   ARGPARSE_s_n (oAllowNonSelfsignedUID,      "allow-non-selfsigned-uid", "@"),
@@ -2386,6 +2388,10 @@ main (int argc, char **argv)
             opt.with_keygrip = 1;
             break;
 
+	  case oWithSecret:
+            opt.with_secret = 1;
+            break;
+
 	  case oSecretKeyring:
             /* Ignore this old option.  */
             break;