fix typo, remove obsolete option, initialize mpub

src/exchange-tools/taler-exchange-keyup.c

@@ -606,7 +606,7 @@ get_denomination_type_params (const char *ct,
   if (GNUNET_OK !=
       GNUNET_CONFIGURATION_get_value_time (kcfg,
                                            ct,
-                                           "DURATION_WIDHTRAW",
+                                           "DURATION_WITHDRAW",
                                            &params->duration_withdraw))
   {
     GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
@@ -1236,6 +1236,8 @@ run (void *cls,
     global_ret = 1;
     return;
   }
+  GNUNET_CRYPTO_eddsa_key_get_public (&master_priv.eddsa_priv,
+                                      &master_public_key.eddsa_pub);
 
   if (NULL != auditorrequestfile)
   {

src/testing/testing_api_helpers_exchange.c

@@ -763,7 +763,6 @@ TALER_TESTING_setup_with_exchange_cfg (void *cls,
                                        "taler-exchange-httpd",
                                        "taler-exchange-httpd",
                                        "-c", setup_ctx->config_filename,
-                                       "-i",
                                        NULL);
 
   if (GNUNET_OK !=