build output is impossible to read due to nested json dumps

[Sorin Sbarnea]

Build output should be readable by humans and JSON and especially nested JSON output is clearly not making the output readable.

While there is nothing wrong on saving output as JSON as this is easily parsed by computers we should avoid printing JSON output on console, or at least not if is more than like 1000 chars.

Newlines should appear as real newlines and not being converted to "\n"

We should avoid extra quoting on output lines (stdout/stderr)

Example: http://logs.openstack.org/91/610491/26/check/tripleo-ci-fedora-28-standalone/d1f01e3/logs/undercloud/home/zuul/standalone_deploy.log.txt.gz#_2018-10-31_21_01_59

[Juan Antonio Osorio Robles (juan-osorio-robles)]

Is this still an issue?