Comment 3 for bug 1457105

Thinking about this a little longer I came to the conclusion that replacing the first character might not be the best idea. If the only unique part of the name that differentiates some profiles is a digit in the first place of the name (unlikely, but still) you would end up with a bunch of identical names. Instead I would prepend an underscore. Since the code in question had another problem (it wouldn't clean up names of length one) I attached a diff that does what I suggested.