[CRIU] [PATCH 2/2] p.haul: use ssh tunneling and controll it with ssh* cmdline opts

[Pavel Emelyanov]

> Btw, I think leaving non-ssh option is wrong, because it is very unsafe.
> Especially it is unsafe to bind p.haul-service to 0.0.0.0 and if we leave
> both ssh and non-ssh options, we would have to tell server whether
> use 0.0.0.0(non-ssh) or 127.0.0.1(ssh), which might be confusing
> for user.
> Why should be leave non-ssh anyway?

Just to have this ability. For internal experiments for example.