* Unlinks a pre-existing file at world.path_record if called on a world.turn>0,
* i.e. if called after iterating through an already established game world.
*
- * Map object (action) definitions read in from server config directory are not
+ * Thing (action) definitions read in from server config directory are not
* affected. The map is populated accordingly. world.last_update_turn is set to
* 0 and world.turn to 1, so that io_round()'s criteria for updating the output
* file are triggered even when this function is called during a round 1.