[gimp] flatpak: Use fallback-x11

[Niels De Graef <nielsdg src gnome org>]

commit 7ee72ee9f7b688335a869fc67a7bd8af7965f1b4
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Thu Sep 30 16:10:09 2021 +0200

    flatpak: Use fallback-x11
    
    From Flatpak's NEWS:
    
    > A new fallback-x11 permission grants X11 access, but only if the user
    > is running in a X11 session. For applications that support both
    > Wayland and X11, this can be used to ensure that the app doesn't have
    > unnecessary X11 access while in Wayland, but still works in an X11
    > session.

 build/flatpak/org.gimp.GIMP-nightly.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/build/flatpak/org.gimp.GIMP-nightly.json b/build/flatpak/org.gimp.GIMP-nightly.json
index 58be31f6d1..bac55636cf 100644
--- a/build/flatpak/org.gimp.GIMP-nightly.json
+++ b/build/flatpak/org.gimp.GIMP-nightly.json
@@ -9,7 +9,7 @@
     "rename-desktop-file": "gimp.desktop",
     "rename-icon": "gimp",
     "finish-args": ["--share=ipc", "--share=network",
-                    "--socket=x11", "--socket=wayland",
+                    "--socket=fallback-x11", "--socket=wayland",
                     "--device=dri",
                     "--filesystem=host", "--filesystem=xdg-config/GIMP",
                     "--filesystem=xdg-config/gtk-3.0", "--filesystem=/tmp",