Send ack (response/message) after receiving manager action userevent

(closes issue #16264)
Reported by: dimas
Patches: 
      event-ack.patch uploaded by dimas (license 88)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@232581 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/manager.c

@@ -2215,6 +2215,7 @@ static int action_userevent(struct mansession *s, const struct message *m)
 		}
 	}
 
+	astman_send_ack(s, m, "Event Sent");	
 	manager_event(EVENT_FLAG_USER, "UserEvent", "UserEvent: %s\r\n%s", event, body);
 	return 0;
 }