[DL] String additions to 'mutter.master'

[GNOME Status Pages <noreply gnome org>]

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There have been following string additions to module 'mutter.master':

+ "To enable experimental features, add the feature keyword to the list. Whether the feature requires 
restarting the compositor depends on the given feature. Any experimental feature is not required to still be 
available, or configurable. Don’t expect adding anything in this setting to be future proof. Currently 
possible keywords: • “scale-monitor-framebuffer” — makes mutter default to layout logical monitors in a 
logical pixel coordinate space, while scaling monitor framebuffers instead of window content, to manage HiDPI 
monitors. Does not require a restart. • “remote-desktop” — enables remote desktop support. To support remote 
desktop with screen sharing, “screen-cast” must also be enabled. • “screen-cast” — enables screen cast 
support."

Note that this doesn't directly indicate a string freeze break, but it
might be worth investigating.
https://git.gnome.org/browse/mutter/log/?h=master