Bug#801614: xserver-xorg-legacy: ask for needs_root_rights in Xwrapper.config

[Thorsten Glaser <tg@mirbsd.de>]

Package: xserver-xorg-legacy
Version: 2:1.20.4-1
Followup-For: Bug #801614

Yes please, I need this preseedable so I can set this to yes in the
debconf database in an installer for a specific platform which needs
this for the X server to work, so that, when the user later installs
the X server, the settings will be already correct (we do not install
X by default but wish to prepare for it).

-- System Information:
Debian Release: bullseye/sid
  APT prefers unreleased
  APT policy: (500, 'unreleased'), (500, 'buildd-unstable'), (500, 'unstable'), (100, 'experimental')
Architecture: x32 (x86_64)
Foreign Architectures: i386, amd64

Kernel: Linux 5.2.0-2-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_FIRMWARE_WORKAROUND
Locale: LANG=C, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=C (charmap=UTF-8)
Shell: /bin/sh linked to /bin/lksh
Init: sysvinit (via /sbin/init)

Versions of packages xserver-xorg-legacy depends on:
ii  debconf [debconf-2.0]  1.5.73
ii  libaudit1              1:2.8.5-2
ii  libbsd0                0.10.0-1
ii  libc6                  2.29-1
ii  xserver-common         2:1.20.4-1

xserver-xorg-legacy recommends no packages.

xserver-xorg-legacy suggests no packages.

-- debconf information:
  xserver-xorg-legacy/xwrapper/actual_allowed_users: anybody
  xserver-xorg-legacy/xwrapper/allowed_users: Anybody