Using CLI instead of bindings

[omertuc]

Is there any particular reason why

bootc/lib/src/install.rs

Lines 603 to 606 in d17e471

	Task::new("Initializing sysroot", "ostree")
	.args(["admin", "os-init", stateroot, "--sysroot", "."])
	.cwd(rootfs_dir)?
	.run()?;

is using the os-init CLI instead of the ostree_sysroot_init_osname libostree API?

[omertuc]

@cgwalters ?

[cgwalters]

It honestly may be that some of this logic I was going back and forth with the old https://github.com/coreos/coreos-assembler/blob/38235218542c39a29255933d3cea64e91754e85f/src/create_disk.sh and may have just started out forking as it was a simpler translation.

Happy to switch to the API!

[omertuc]

Alright, made #781