[Debian-med-packaging] Bug#908834: please build zstd udeb so that btrfs-progs can use zstd in Debian Installer

[Nicholas D Steeves]

Package: zstd
Version: 1.3.5+dfsg-1
Severity: wishlist

Dear Debian Med Packaging Team,

Would you please build a zstd udeb so that btrfs-progs can use zstd in
Debian Installer and Rescue System?  It uses zstd for transparent
filesystem compression.

eg: `chattr +c`, or `btrfs filesystem defrag -c`, or via a mount
option `compress=zstd`.  I believe the first and last of these use the
kernel's libzstd, and that the udeb is primarily required for
`btrfs-repair` to handle zstd extents in the Rescue System.  Also, please continue to CC Dmitri Ledkov, Debian's btrfs-progs maintainer.

Cheers,
Nicholas