gpg: Always initialize the trust db when generating keys.

* g10/gpg.c (main): Always initialize the trust db when generating
keys.
* g10/keygen.c (do_generate_keypair): We can now assume that there is
a trust db.
--
It is important to mark keys we create as ultimately trusted.

Fixes-commit: 4735ab96aa
GnuPG-bug-id: 2695
Signed-off-by: Justus Winter <justus@g10code.com>

g10/gpg.c

@@ -3949,6 +3949,11 @@ main (int argc, char **argv)
       case aListTrustDB:
         rc = setup_trustdb (argc? 1:0, trustdb_name);
         break;
+      case aKeygen:
+      case aFullKeygen:
+      case aQuickKeygen:
+        rc = setup_trustdb (1, trustdb_name);
+        break;
       default:
         /* If we are using TM_ALWAYS, we do not need to create the
            trustdb.  */