Merge pull request #1383 from aaronkelton/patch-1

lib/generators/paper_trail/install/templates/create_versions.rb.erb

@@ -28,11 +28,11 @@ class CreateVersions < ActiveRecord::Migration<%= migration_version %>
       # MySQL users should also upgrade to at least rails 4.2, which is the first
       # version of ActiveRecord with support for fractional seconds in MySQL.
       # (https://github.com/rails/rails/pull/14359)
-      # 
+      #
       # MySQL users should use the following line for `created_at`
-      # t.datetime :created_at, limit: 6                                        
+      # t.datetime :created_at, limit: 6
       t.datetime :created_at
     end
-    add_index :versions, %i(item_type item_id)
+    add_index :versions, %i[item_type item_id]
   end
 end