Bug#992695: regression: update-shells breaks with busybox

[Clint Adams]

On Sun, Aug 22, 2021 at 07:22:01PM +0200, Johannes Schauer Marin Rodrigues 
wrote:
> Whoops, yes I did. I'm glad you spotted my mistake!

Let me know if 5.4 does the correct thing despite the annoying
error messages.