improve logging

src/exchange/taler-exchange-httpd_keys.c

@@ -2412,7 +2412,6 @@ TEH_keys_management_get_handler (const struct TEH_RequestHandler *rh,
   ksh = get_key_state (true);
   if (NULL == ksh)
   {
-    GNUNET_break (0);
     return TALER_MHD_reply_with_error (connection,
                                        MHD_HTTP_INTERNAL_SERVER_ERROR,
                                        TALER_EC_EXCHANGE_GENERIC_KEYS_MISSING,

src/lib/exchange_api_management_get_keys.c

@@ -298,7 +298,6 @@ handle_get_keys_finished (void *cls,
     break;
   default:
     /* unexpected response code */
-    GNUNET_break_op (0);
     hr.ec = TALER_JSON_get_error_code (json);
     hr.hint = TALER_JSON_get_error_hint (json);
     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,

src/util/crypto_helper_denom.c

@@ -234,6 +234,9 @@ TALER_CRYPTO_helper_denom_connect (
     if (GNUNET_OK !=
         GNUNET_DISK_directory_create_for_file (template))
     {
+      GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
+                                "mkdir",
+                                template);
       GNUNET_free (dh);
       GNUNET_free (template);
       return NULL;