New review comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/38493#discussion_r939687051

Comment:
Please also patch https://github.com/lxc/lxc/blob/master/meson.build#L119-L128 to
```
distrosysconfdir = join_paths(sysconfdir, 'default')
conf.set('LXC_DISTRO_SYSCONF', distrosysconfdir)
```