prettier output when exiting runner

[dorianmariecom]

e.g. when exiting heroku run rails c I get:

CLIError: forcing dyno disconnect
    at Object.error (/usr/local/Cellar/heroku/7.50.0/lib/client/7.59.1/node_modules/@oclif/errors/lib/index.js:22:17)
    at ReadStream.<anonymous> (/usr/local/Cellar/heroku/7.50.0/lib/client/7.59.1/node_modules/@heroku-cli/plugin-run/lib/lib/dyno.js:325:38)
    at ReadStream.emit (events.js:326:22)
    at addChunk (_stream_readable.js:297:12)
    at readableAddChunk (_stream_readable.js:268:11)
    at ReadStream.Readable.push (_stream_readable.js:213:10)
    at TTY.onStreamRead (internal/stream_base_commons.js:188:23) {
  oclif: { exit: 1 },
  code: undefined
}

Maybe a forcing dyno disconnect maybe with some color to distinguish it from other output would be enough? and clearer