Optimize pluralization logic in test data

- Switch from Array#include? to Range#cover? for more than 5 items

test/test_data/locales/plurals.rb

@@ -3,7 +3,7 @@
 {
   :af => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },
   :am => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| [0, 1].include?(n) ? :one : :other } } } },
-  :ar => { :i18n => { :plural => { :keys => [:zero, :one, :two, :few, :many, :other], :rule => lambda { |n| n == 0 ? :zero : n == 1 ? :one : n == 2 ? :two : [3, 4, 5, 6, 7, 8, 9, 10].include?(n % 100) ? :few : [11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99].include?(n % 100) ? :many : :other } } } },
+  :ar => { :i18n => { :plural => { :keys => [:zero, :one, :two, :few, :many, :other], :rule => lambda { |n| n == 0 ? :zero : n == 1 ? :one : n == 2 ? :two : (3..10).cover?(n % 100) ? :few : (11..99).cover?(n % 100) ? :many : :other } } } },
   :az => { :i18n => { :plural => { :keys => [:other], :rule => lambda { |n| :other } } } },
   :be => { :i18n => { :plural => { :keys => [:one, :few, :many, :other], :rule => lambda { |n| n % 10 == 1 && n % 100 != 11 ? :one : [2, 3, 4].include?(n % 10) && ![12, 13, 14].include?(n % 100) ? :few : n % 10 == 0 || [5, 6, 7, 8, 9].include?(n % 10) || [11, 12, 13, 14].include?(n % 100) ? :many : :other } } } },
   :bg => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },
@@ -52,7 +52,7 @@
   :ku => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },
   :lb => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },
   :ln => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| [0, 1].include?(n) ? :one : :other } } } },
-  :lt => { :i18n => { :plural => { :keys => [:one, :few, :other], :rule => lambda { |n| n % 10 == 1 && ![11, 12, 13, 14, 15, 16, 17, 18, 19].include?(n % 100) ? :one : [2, 3, 4, 5, 6, 7, 8, 9].include?(n % 10) && ![11, 12, 13, 14, 15, 16, 17, 18, 19].include?(n % 100) ? :few : :other } } } },
+  :lt => { :i18n => { :plural => { :keys => [:one, :few, :other], :rule => lambda { |n| n % 10 == 1 && !(11..19).include?(n % 100) ? :one : [2, 3, 4, 5, 6, 7, 8, 9].include?(n % 10) && !(11..19).include?(n % 100) ? :few : :other } } } },
   :lv => { :i18n => { :plural => { :keys => [:zero, :one, :other], :rule => lambda { |n| n == 0 ? :zero : n % 10 == 1 && n % 100 != 11 ? :one : :other } } } },
   :mg => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| [0, 1].include?(n) ? :one : :other } } } },
   :mk => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n % 10 == 1 ? :one : :other } } } },
@@ -61,7 +61,7 @@
   :mo => { :i18n => { :plural => { :keys => [:one, :few, :other], :rule => lambda { |n| n == 1 ? :one : n == 0 ? :few : :other } } } },
   :mr => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },
   :ms => { :i18n => { :plural => { :keys => [:other], :rule => lambda { |n| :other } } } },
-  :mt => { :i18n => { :plural => { :keys => [:one, :few, :many, :other], :rule => lambda { |n| n == 1 ? :one : n == 0 || [2, 3, 4, 5, 6, 7, 8, 9, 10].include?(n % 100) ? :few : [11, 12, 13, 14, 15, 16, 17, 18, 19].include?(n % 100) ? :many : :other } } } },
+  :mt => { :i18n => { :plural => { :keys => [:one, :few, :many, :other], :rule => lambda { |n| n == 1 ? :one : n == 0 || (2..10).include?(n % 100) ? :few : (11..19).include?(n % 100) ? :many : :other } } } },
   :my => { :i18n => { :plural => { :keys => [:other], :rule => lambda { |n| :other } } } },
   :nah => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },
   :nb => { :i18n => { :plural => { :keys => [:one, :other], :rule => lambda { |n| n == 1 ? :one : :other } } } },