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...to the OP. I don't know definitely about your VO bar, but I suspect it is one of the modern alloy bars that are heat treated as a matter of course. It's how they make them lighter, out of thinner alloy tubing, and stronger nowadays. If all you are bending is the ends a little bit, you can probably get away with it. The major issue with an alloy bar breaking is when they break close to the stem, and you end up with one half of the bar waving around in the air, unable to steer, and with a very surprised look on your face.
At least, that's what I think I looked like, the one time i busted an old French handlebar. Very surprised...didn't have time to proceed to frightened.
Honestly, I would probably just shorten the ends with a tubing cutter, before I tried bending them. That should narrow them down a little.