lib/banktools-se/utils.rb in banktools-se-0.0.1 vs lib/banktools-se/utils.rb in banktools-se-0.2.0

@@ -1,13 +1,12 @@
 module BankTools
   module SE
     module Utils
 
       # Based on http://blog.internautdesign.com/2007/4/18/ruby-luhn-check-aka-mod-10-formula
-      require "enumerator"
       def self.valid_luhn?(number)
         digits = number.to_s.scan(/\d/).reverse.map { |x| x.to_i }
-        digits = digits.enum_with_index.map { |d, i|
+        digits = digits.each_with_index.map { |d, i|
           d *= 2 if i.odd?
           d > 9 ? d - 9 : d
         }
         sum = digits.inject(0) { |m, x| m + x }
         sum % 10 == 0