Prevent capitalization of order item meta

gistfile1.php

/**
 * By default, WooCommerce will capitalize order item meta labels
 * in some cases this may be undesirable, use this snippet to
 * un-do the capitalization
 * @see  wc function wc_attribute_label in includes/wc-attribute-functions.php
 */
add_filter( 'woocommerce_attribute_label', 'wooninja_attribute_label', 10, 2 );

function wooninja_attribute_label( $formatted_label, $original_label ) {
	return $original_label;
}