/** @brief Handle all messages arriving within the given period
*
- * @param timeOut: How long to wait for incoming messages (in seconds)
- * @return the error code (or no_error).
+ * @param period: How long to wait for incoming messages (in seconds)
*
* Messages are dealed with just like gras_msg_handle() would do. The
* difference is that gras_msg_handle() handles at most one message (or wait up