update lwip_tcpip.c (to revert)

Author: balajicyp

features/lwipstack/lwip/src/api/lwip_tcpip.c

@@ -519,6 +519,7 @@ tcpip_api_call(tcpip_api_call_fn fn, struct tcpip_api_call_data *call)
  * e.g. the message is allocated once and posted several times from an IRQ
  * using tcpip_callbackmsg_trycallback().
  * Example usage: Trigger execution of an ethernet IRQ DPC routine in lwIP thread context.
+ *
  * @param function the function to call
  * @param ctx parameter passed to function
  * @return a struct pointer to pass to tcpip_callbackmsg_trycallback().