Random diff is added to the min to generate password lengths
Random diff is added to the min to generate password lengths

Previously defined random value is added to the min value to generate
lengths between the min and max.
Max value is now double the min value to avoid negative random values.

Replication of issue:
https://gist.github.com/aboutjon/a124c9873a5bdb87fba5

aboutjon/faker,aboutjon/faker,aboutjon/faker