grub-extras/lua: fs->label in grub.enum_device

[Fajar A. Nugraha]

Hi,

Is this the right place to ask about possible enhancement to grub-lua?

I'm looking to modify osdetect.lua with the ability to boot
ubuntu-on-zfs setup. Most of the needed capabilities are already
there. However I can't find how to get pool name from a device. Grub
is already able to detect the pool name as label, and it shows up
correctly when I use "probe -l". Would you be open to modifying
grub_lib.c so that grub.enum_device will also pass fs label to the
callback function (currently it pass device, fs, and uuid)?

Or alternatively, in case I missed something obvious, is there a way
capture the output of "probe -l" and use it on lua? grub.run only
returns error code and error message.

-- 
Fajar