Behat/Behat — comment on commit 003082e677cd7d3a57f689b3cda91dad1067bd7f
File: src/Behat/Behat/Tester/StepTester.php line 184
By everzet:

it's for readability, i found myself frustrating couple of times with `$value` vs `$substep` transition, where one becomes another :-)