say() - send a message to all users in the same environment
varargs void say( string str, object obj );
Sends a message to the environment of the originator, all items in the
same environment, and all items inside of the originator. The origina‐
tor is this_player(), unless this_player() == 0, in which case, the
originator is this_object().
The second argument is optional. If second argument 'obj' is speci‐
fied, the message is sent to all except 'obj'. If 'obj' is not an
object, but an array of objects, all those objects are excluded from
receiving the message.
message(3), write(3), shout(3), tell_object(3), tell_room(3)