Ploblem at the header, with the new Beta 8, string(2) "en"

Hello,

The new beta, 8, put on the Header (Top of the page) , at the left side, depente the language, this : string(2) “el” , string(2) “de” , string(2) “en” , string(2) “fr” .

What can I do to put out this tag, from the Header, because they broke my Theme.

Best Regards

I just forgot a testing line. Will be away in next beta that will come today.
Regards