Don't fallback to just adding "'s" in TextHelper#pluralize, because the Inflector is always loaded.

actionpack/lib/action_view/helpers/text_helper.rb

@@ -147,10 +147,9 @@ module ActionView
         end
       end
 
-      # Attempts to pluralize the +singular+ word unless +count+ is 1. If +plural+
-      # is supplied, it will use that when count is > 1, if the ActiveSupport Inflector 
-      # is loaded, it will use the Inflector to determine the plural form, otherwise 
-      # it will just add an 's' to the +singular+ word.
+      # Attempts to pluralize the +singular+ word unless +count+ is 1. If
+      # +plural+ is supplied, it will use that when count is > 1, otherwise
+      # it will use the Inflector to determine the plural form
       #
       # ==== Examples
       #   pluralize(1, 'person')
@@ -165,15 +164,7 @@ module ActionView
       #   pluralize(0, 'person')
       #   # => 0 people
       def pluralize(count, singular, plural = nil)
-         "#{count || 0} " + if count == 1 || count == '1'
-          singular
-        elsif plural
-          plural
-        elsif Object.const_defined?("Inflector")
-          Inflector.pluralize(singular)
-        else
-          singular + "s"
-        end
+        "#{count || 0} " + ((count == 1 || count == '1') ? singular : (plural || singular.pluralize))
       end
 
       # Wraps the +text+ into lines no longer than +line_width+ width. This method

actionpack/test/template/text_helper_test.rb

@@ -169,17 +169,6 @@ class TextHelperTest < ActionView::TestCase
     assert_equal("10 buffaloes", pluralize(10, "buffalo"))
   end
 
-  uses_mocha("should_just_add_s_for_pluralize_without_inflector_loaded") do
-    def test_should_just_add_s_for_pluralize_without_inflector_loaded
-      Object.expects(:const_defined?).with("Inflector").times(4).returns(false)
-      assert_equal("1 count", pluralize(1, "count"))
-      assert_equal("2 persons", pluralize(2, "person"))
-      assert_equal("2 personss", pluralize("2", "persons"))
-      assert_equal("2 counts", pluralize(2, "count"))
-      assert_equal("10 buffalos", pluralize(10, "buffalo"))
-    end
-  end
-
   def test_auto_link_parsing
     urls = %w(http://www.rubyonrails.com
               http://www.rubyonrails.com:80