Hi, I got to this thread because I have actually the same problem (and one with the button when cart is empty) with the spanish translation…
in the language file I see the message:
#: templates/checkout/terms.php:26
msgid “I’ve read and accept the terms & conditions”
msgstr “He leído y aceptado los términos y condiciones”
I checked the terms.php file: it is the very same text (well without escape chars for the camelquote), EXCEPT that the target=”_blank” part is not in the template file, this explains why the translation string is not found.
On my install I’ve changed that and the string got translated well…
SO IT IS ACTUALLY A VERY TEENY TINY BUG!