bug#23113: parallel gzip processes trash hard disks, need larger buffers

[Paul Eggert]

Jim Meyering wrote:
> Thanks for the reminder about pigz, Mark.
> This is yet another reason to consider gzip is in maintenance-only mode,
> i.e., the barrier to adding new features is even higher, given that
> pigz is so compatible, yet with added features and the benefit of
> a modern codebase.

It'd be nice if we could migrate GNU gzip into merely being a front-end for pigz 
somehow.