Didn’t need to. Found the problem in line 4 (ish) of the enfold_child.css file where it sets the page width to a set number of pixels.
Commented it out and all works fine.
Wierd place for the .css file.
Maybe a fix in the next upgrade, include a new child theme css file.
I spoke too soon. The ability to change the text is there, but when you put in the password and submit, you get a 404 page not found error. It’s not remembering the page it needs to go to.
First time I pasted the code from my e-mail notification. Big giant error. Tried again pasting directly from your post and it worked great.
Having the right code and even better the perfect insertion spot made all the difference.