New comment by meator on void-packages repository

https://github.com/void-linux/void-packages/pull/38265#issuecomment-1193953402

Comment:
> Does `btrfs-assistant-launcher` work without `sudo`?

As tranzystorek-io pointed out, `btrfs-assistant-launcher` is just
```sh
#!/usr/bin/env bash

pkexec btrfs-assistant --xdg-desktop=$XDG_CURRENT_DESKTOP
```

It uses `pkexec` for privilege escalation when run without `sudo` and then fails with the same error.

Interestingly
```sh
pkexec env DISPLAY=:0 btrfs-assistant --xdg-desktop=$XDG_CURRENT_DESKTOP
```
works. I think it's because `pkexec` strips unsafe environment variables which include `$DISPLAY`, and because Qt needs that, it fails.