I agree. I always try to write error handlers using "or". Preferably with "or die", but "or do" isn't a problem. But it is certainly not now. I have been doing this for just over a year now, but I have copied it from someone else.
In my style guide is:
Error checking is done using or. This means open or do { ... } instead of unless (open) { ... } when handling the error is more than a simple statement.
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