How to check for differences in config Is there any way to check for differences with config in Drush 8?

I checked the list of drush 8 config commands and I couldn't find anything.

The reason I need this is that I have a site that runs behat tests via CircleCI, and sometimes I need to import the configuration more than once.  So, I wanted to write a bash script that uses Drush to check whether there are any configuration differences, and if so, automatically re-imports the config in a loop until there are no more differences.

I'm stuck on Drush 8 because the behat extension only supports Drush 8.
If you have Drupal console installed, you could try config:diff