nil.to_i casts to zero, breaking the rubycheck results. This fixes that.
nil.to_i casts to zero, breaking the rubycheck results. This fixes that.

technion/ruby-argon2,lxp/ruby-argon2,lxp/ruby-argon2,lxp/ruby-argon2,technion/ruby-argon2,technion/ruby-argon2