Missing t() from uc_order/uc_order.order_pane.inc

"Select from address book." string is not printed always with t(). Around line 70 this string is printed two times (into a "title" and into an "alt" tag).

74,75c74,75
<                 .'/images/address_book.gif" alt="Select from address book.") '
<                 .'title="Select from address book." onclick="load_address_select('. $arg1['order_uid']['#value'] .', \'#delivery_address_select\', \'delivery\');" '
---
>                 .'/images/address_book.gif" alt="' . t("Select from address book.") . '") '
>                 .'title="' . t("Select from address book.") . '" onclick="load_address_select('. $arg1['order_uid']['#value'] .', \'#delivery_address_select\', \'delivery\');" '