zxcvbn: Apply ROT13 when building the dynamic user_inputs dictionary.

The modified matcher assumes that the dictionaries are ROT13 encoded.
All of the static dictionaries were, but user_inputs wasn't. See #21737.


git-svn-id: https://develop.svn.wordpress.org/trunk@25159 602fd350-edb4-49c9-b593-d223f7449a82