RoutingHelper - docstring fix

src/RuntimeCommon/RoutingHelper.h

@@ -42,7 +42,7 @@ enum RemoteInterface find_unique_destination(const enum SystemBus bus);
 /** @brief Check if bus has any destination port.
  *
  * @param[bus] system bus
- * @return 0 if bus have not any destination port, otherwise non-zero value
+ * @return 0 if bus does not have any destination port, otherwise non-zero value
  */
 int check_bus_has_any_destination_port(const enum SystemBus bus);