Comment 6 for bug 1840704

Attaching the debdiffs for zfs-linux/spl-linux on X/B/D/E,
for documentation purposes; will send testing/notes later.

Independently of the kernel packaging approach determined
to enable debug symbols on ZFS/SPL modules, these kind of
patches for the userspace packages are be required anyway,
and correctly performed that task when building with DKMS.

So I'll probably move forward with their SRU request soon,
in the benefit of having this available sooner if required
(i.e. so users/engineers in need of debug symbols may just
rebuild with DKMS using this, and be able to investigate.)