After MDL-54628 got integrated, behat directory structure has been changed a bit, so we can have more control on how behat parallel run work.
behat.yml use to reside in $CFG->behat_dataroot/behat/behat.yml,
From 3.2.2 it will now reside in $CFG->behat_dataroot/BEHAT_PARALLEL_SITE_NAME/behat/behat.yml
Default value for BEHAT_PARALLEL_SITE_NAME is behatrun, so path is $CFG->behat_dataroot/behatrun/behat/behat.yml
Similar to above for parallel runs, path will be
For 1st run: $CFG->behat_dataroot/behatrun1/behat/behat.yml
For 21nd run: $CFG->behat_dataroot/behatrun2/behat/behat.yml
and so on.
This whole change was done to manage parallel and single behat in much better way and keep information about behat within $CFG->behat_dataroot