Same reason as commit 0d6d829 ("...it's easier to read table with
fixed-length-values in left-hand columns.") and both "result" and "changed"
values vary much less than "hostname" and "task_name".

Join first 2 messages into one line.
Much needed aesthetical change, stdout is too cluttered.

It's a dirty solution but has to do for now - it's a crucial feature. Besides,
play_item failure is definitely the most common reason for ansible-deployer task
failure.

All messages are inconveniently spreaded in terminal.

Adjust some test strings.
This, on the other hand, makes stdout more readable.