How to avoid Karaf SSH access output buffering?

[Martin Lichtin via user]

Using ssh to execute  Karaf commands, there's buffering going on and one 
cannot see a command output as it happens.
e.g.

ssh -p 8101 karaf@localhost "ls; sleep 10"
does not show the "ls" output, it's only flushed and visible after the 
10s sleep.

For commands with large output (say 10k) one can see the buffering effect.

Can this be changed somehow, to achieve instant output of a command?