updated Changelog

activerecord/CHANGELOG

@@ -237,19 +237,13 @@
   rails g model post user:belongs_to will generate the following:
 
     class CreatePosts < ActiveRecord::Migration
-      def up
-        create_table :posts do |t|
-          t.belongs_to :user
-
-          t.timestamps
+        def change
+          create_table :posts do |t|
+            t.belongs_to :user
+            t.timestamps
+          end
+          add_index :posts, :user_id
         end
-
-        add_index :posts, :user_id
-      end
-
-      def down
-        drop_table :posts
-      end
     end
 
   [Santiago Pastorino]