auto configDirsGuard = EnvGuard("XDG_CONFIG_DIRS", "/etc/xdg");
auto currentDesktopGuard = EnvGuard("XDG_CURRENT_DESKTOP", "unity:GNOME");
assert(vendorMimeAppsListPaths() == ["/etc/xdg/unity-mimeapps.list", "/etc/xdg/gnome-mimeapps.list", "/etc/xdg/mimeapps.list"]);
Find mimeapps.list files locations for sysadmin and ISV overrides including specific for the current desktop. Found paths are not checked for existence.
This function is Freedesktop only.