git: nrelease: Use part-by-label to identify root in .img

[Michael Neumann]

On Thu, Feb 28, 2019 at 07:38:47AM -0800, Aaron LI wrote:
> 
> commit 3ac648903e9d68df99a5051908ca1c1c8f9a651f
> Author: Aaron LI <aly at aaronly.me>
> Date:   Thu Feb 28 15:59:00 2019 +0800
> 
>     nrelease: Use part-by-label to identify root in .img

That's a useful feature! Thanks!

Regards,

  Michael