Don't know if this helps, but in 5.3, that same file looked like this:
Code:
{##
# Low limit warning email body (to admin)
#}
<p>
{{ t('SKU') }}: {{ this.product.sku|raw }}<br />
{{ t('Product name') }}: {{ this.product.name|raw }}<br />
<br />
{{ t('In stock') }}: {{ t('X items', {'count': this.product.amount}) }}
</p>
<p>
{{ t('Click the link to increase product amount') }}: <a href="{{ this.product.adminURL }}">{{ this.product.adminURL }}</a>
</p>