Something in me really doesn't like that trailing comma, which I wouldn't have expected to work. I suspect it's just an old habit, as it doesn't work in C & C++, which is still there lurking at the back of my mind and occasionally poisoning the Perl code that I write. OK, I'll try and get used to it, and thanks for introducing me to it - I trust that it really has no effect.
Now to get back some of that lost XP by upvoting the helpful replies...
ah, I like being a Friar anyway, it goes with my T-shirt.