core: comments updated for msg_send_buffer()

(cherry picked from commit 9c2c4bafa0f0cd980b5867e7d4c0995255730f87)

src/core/forward.h

@@ -111,7 +111,7 @@ int is_check_self_func_list_set(void);
  *         that generated them; use 0 if you don't want this)
  * buf, len = buffer
  * flags = control internal behavior
- *    * 1 - skip executing event SREV_NET_DATA_OUT
+ *    * 1 - skip executing events: SREV_NET_DATA_OUT, SREV_NET_DATA_SEND
  * returns: 0 if ok, -1 on error*/
 
 static inline int msg_send_buffer(struct dest_info* dst, char* buf, int len,