Looks like this should be initialized to 1. As the first if statement

Looks like this should be initialized to 1. As the first if statement
that changes the item sets it to 0 if no arg2 exists(which makes sense).
Normal command operation is @atrlock obj=lock, or @atrlock obj.
Thus no arg2 would be unlocking, and with arg2 would be a lock
operation.

IssueID #246