Run rubocop --fix-layout and remove encoding comments

db/migrate/011_create_comments.rb

@@ -6,13 +6,13 @@ class CreateComments < ActiveRecord::Migration[4.2]
       t.column :created_at, :datetime, :null => false
       t.column :commentable_id, :integer, :default => 0, :null => false
       t.column :commentable_type, :string, :limit => 15,
-        :default => "", :null => false
+                                           :default => "", :null => false
       t.column :user_id, :integer, :default => 0, :null => false
     end
-  
+
     add_index :comments, ["user_id"], :name => "fk_comments_user"
   end
-  
+
   def self.down
     drop_table :comments
   end