There's a merged pull request on the void-packages repository

backport meson patch to set lxc-user-nic suid bit
https://github.com/void-linux/void-packages/pull/38726

Description:
Switch to meson had a small casualty.
Rebuild with patched meson.
Also simplify the docbook2x patch.

https://github.com/mesonbuild/meson/pull/10702
https://github.com/lxc/lxc/pull/4177

Closes #38682

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