fetch jobs does not return job config

[lenhattan86]

austraulis fetch jobs work fine with --toJSON but not without it.
For example:

$ australist fetch jobs -z [zk_node] -r admin
INFO[0000] Scheduler URL from ZK:  http://[aurora-leader]:8081
INFO[0000] gorealis clientConfig url: http://[aurora-leader]:8081/api
INFO[0000] Fetching tasks under role: admin
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