UPDATE: Err, I answered my own question right after submission; I apologize for asking such a silly question, and jumping to ask, before giving it any thought.
The solution is, of course, to just use unless $ARGV[2].

UPDATE 2: I guess I should have been more precise in both my question and update. Originally, the last argument was 0; but changing it to a string was the solution I came up with..

In reply to Re: $ARGV dilemma by dusk
in thread $ARGV dilemma by dusk

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