Fixed `logs` gluing the lines together.

[grigorye]

Given:

$ orchard create vm v --startup-script 'for i in $(seq 1 10); do echo "$i."; done'

Before:

$ orchard logs vm v
1.2.3.4.5.6.7.8.9.10.$

After:

$ orchard-local logs vm v
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
$