manager: Return ActionID on nominal responses to PresenceState action

When the PresenceState action is executed, the nominal path fails to include
the ActionID in the successful response. This patch adds a call to
astman_start_ack, which guarantees that an ActionID (if provided) will be
sent back to the AMI client.

Review: https://reviewboard.asterisk.org/r/3776/

ASTERISK-23985 #close


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/11@418713 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/manager.c

@@ -4666,6 +4666,7 @@ static int action_presencestate(struct mansession *s, const struct message *m)
 				"Message: %s\r\n", message);
 	}
 
+	astman_start_ack(s, m);
 	astman_append(s, "Message: Presence State\r\n"
 			"State: %s\r\n"
 			"%s"