use correct HTTP status codes:

contrib/gana

@@ -1 +1 @@
-Subproject commit 78138eee72ade00788fbce032cb096f64fc1b9fb
+Subproject commit 32acd55e3d886322dab80bfbed4e73f590013472

src/exchange/taler-exchange-httpd_keystate.c

@@ -2545,7 +2545,7 @@ TEH_handler_keys (const struct TEH_RequestHandler *rh,
     {
       /* Option not allowed by configuration */
       return TALER_MHD_reply_with_error (connection,
-                                         MHD_HTTP_BAD_REQUEST,
+                                         MHD_HTTP_FORBIDDEN,
                                          TALER_EC_KEYS_TIMETRAVEL_FORBIDDEN,
                                          NULL);
     }

src/exchange/taler-exchange-httpd_refreshes_reveal.c

@@ -461,7 +461,7 @@ refreshes_reveal_transaction (void *cls,
     {
       GNUNET_break_op (0);
       *mhd_ret = TALER_MHD_reply_with_error (connection,
-                                             MHD_HTTP_INTERNAL_SERVER_ERROR,
+                                             MHD_HTTP_BAD_REQUEST,
                                              TALER_EC_REVEAL_AMOUNT_INSUFFICIENT,
                                              NULL);
       return GNUNET_DB_STATUS_HARD_ERROR;

src/exchangedb/test_exchangedb_denomkeys.c

@@ -159,8 +159,7 @@ main (int argc,
                    (unsigned long long) start.abs_value_us);
   GNUNET_asprintf (&revdir,
                    "%s/revocations/",
-                   tmpdir,
-                   TALER_EXCHANGEDB_DIR_DENOMINATION_KEYS);
+                   tmpdir);
   EXITIF (GNUNET_OK !=
           TALER_EXCHANGEDB_denomination_key_write (tmpfile,
                                                    &dki));