I think it looks good as is, just a touch of character. Kinda like a scar. Chicks dig scars, therefore they dig bleach stains on jeans too.
If you really don't like them, I would go to Walmart and pick up some Rit dye, maybe one blue and one black, mix it up, and apply very carefully with a q-tip or something. I think the dye should fade with the jeans, so you'll just have discolored spots that are in the same general category of color, instead of white spots.