yq does not handle non-json output from jq.

[Jim Park]

E, [2015-09-11T20:16:30.929201 #81448] ERROR -- : Unhandled exception JSON::ParserError: 757: unexpected token at '"small_z1"
"small_z2"
"medium_z1"
"medium_z2"
"large_z1"
"large_z2"
"runner_z1"
"runner_z2"
"router_z1"
"router_z2"
"small_errand"
"xlarge_errand"
'