Github user Gilbert88 commented on the issue:
https://github.com/apache/mesos/pull/269
commit d863d61b281ecfe6bb27325a90f4e84881e8cfd6
Author: Benjamin Peterson <[email protected]>
Date: Mon Mar 5 22:02:26 2018 -0800
fix name of --executor_environment_variables
Needs underscores not dashes.---
