New comment by Clos3y on void-packages repository

https://github.com/void-linux/void-packages/issues/38075#issuecomment-1550349494

Comment:
> you need to check if there's a matching rule for sudo/doas too, see what xtools does for some things

Taking this from `xi`
```
which_sudo() {
	if [ "$(id -u)" = "0" ]; then
		return
	elif command -v sudo >/dev/null && sudo -l | grep -q -e ' ALL$' -e xbps-install; then
		echo sudo
	elif command -v doas >/dev/null && [ -f /etc/doas.conf ]; then
		echo doas
	else
		echo su
	fi
}
```
putting it into the header of `xbps-src`, and changing `xbps-src:1003` to `XBPS_SUCMD="$(which_sudo) sh -c" bulk_update` works. Seems to be the only place `XBPS_SUCMD` is used too at the moment.