It would be helpful to see a picture, but I'm guessing it's normal. We have a bantam rooster that has some strange looking, curly spurs. To make sure, it would be best if you post a picture of them.
It may not be completely "normal" but if they aren't causing any harm they should just be kept close watch on. There are many threads on here about trimming & removing spurs that you might want to check out.
I think of spurs that grow in odd directions like cows horns that grow into their eyes. It is essentially "normal" for them but b/c their genetics caused them to grow that way; that doesn't mean you can just leave them be. Eventually they will cause damage so its good to be prepared.