Default Author Description

Hi,
Where can I change the default author description (if a user has not filled in their “Bio”)?
Right now it reads something like:
“This author has yet to write their bio.
Meanwhile lets just say that we are proud AUTHORNAME contributed a whooping XX entries.” I understand that the text to be edited is located in enfold\includes\loop-about-author.php but I do not want to edit theme files because I will have to manually make the changes every time the theme is updated. Ugh.

Thanks in advance!