beeper: fix debug logging as per #486164

Redirects stdout to /dev/null as there's no way to control the logging level and logs are written to a file anyways.

pkgs/by-name/be/beeper/package.nix

@@ -48,7 +48,8 @@ appimageTools.wrapAppImage {
     . ${makeWrapper}/nix-support/setup-hook
     wrapProgram $out/bin/beeper \
       --add-flags "\''${NIXOS_OZONE_WL:+\''${WAYLAND_DISPLAY:+--ozone-platform-hint=auto --enable-features=WaylandWindowDecorations --enable-wayland-ime=true}} --no-update" \
-      --set APPIMAGE beeper
+      --set APPIMAGE beeper \
+      --run 'exec >/dev/null' # as recommended in #486164
   '';
 
   passthru = {