/* There is two very different ways of being informed when an actor exits.
*
- * The this_actor::on_exit() function allows to register a function to be
+ * The this_actor::on_exit() function allows one to register a function to be
* executed when this very actor exits. The registered function will run
* when this actor terminates (either because its main function returns, or
* because it's killed in any way). No simcall are allowed here: your actor