woothemes/woocommerce — pull request #6016 by SiR-DanieL (2014-08-12 14:58:18+00:00)
Title: Filter woocommerce_stock_html_variation_{variation_id}

Added filter woocommerce_stock_html_variation_{variation_id}

I was in need to change the stock status text for each variation, this would be useful.