[DL]String additions to 'gnome-initial-setup.master'

[GNOME Status Pages <noreply gnome org>]

This is an automatic notification from status generation scripts on:
https://l10n.gnome.org.

There have been following string additions to module 'gnome-initial-setup.master':

+ "Third-party repositories provide access to additional software from selected external sources, including 
popular apps and drivers that are important for some devices. Some proprietary software is included."

Note that this doesn't directly indicate a string freeze break, but it
might be worth investigating.
https://gitlab.gnome.org/GNOME/gnome-initial-setup/commits/master