More debug output, please

[coke]

I am getting the following error with a 6K+ line JSON file:

at 7003, unexpected partitioner ':' inside list of things in an array

It would be nice if I could rerun with a DEBUG env and have it dump out more context so I can troubleshoot the JSON file (which is generated by some other system)

[coke]

... and after manually installing a version showing me the extra characters, I realize this is an error in the JSONC parsing, and was in a much smaller json file that actually is under my control. Still, more debug output nice.