Hi,
If you want to have the original line, you can take a look at the original file.
You are using overrides, so the used file is in the folder: " templates/beez_20/html/com_hikashop/view_name/ " (the template name changes depending your front-end template).
The original file will be in the folder: " components/com_hikashop/views/view_name/tmpl/ ".
So for the file "/templates/beez_20/html/com_hikashop/product/listing.php", you can open the original file : "components/com_hikashop/views/product/tmp/listing.php".
It will be easier for you to check directly the original file.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.