How to Quit by default X11 when shutting down

When I shutdown my computer I am having followin pop-up for X11, by default I want to always Quit instead of manually clicking.

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[Q] How to accept by defualt Quit for X11 when it is closed?

Adding the following to the X11 preferences removes the popup-

defaults write org.macosforge.xquartz.X11 no_quit_alert true

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