spree/spree — pull request #4856 by brchristian (2014-06-24 15:33:09+00:00)
Title: Delegate accessor line_item.sku to variant

I noticed that Spree has really helpful delegate methods on the `line_item` for `name` and `description` (technically these are double-delegated, to the `product` via the `variant`), and I thought it might be convenient to have a similar delegate accessor for the `sku`, which often appears near `name` and `description` in views.