ssl mesos-executor not using /etc/default/mesos

[Marc Roos]

Looks like the mesos-executor is not using /etc/default/mesos 
environment variables

If I export the variables in /etc/default/mesos manually, I can run the 
task. 

mesos-execute --master=x.x.x.x:5050 --principal=xxx --secret=xxx 
--name=ls --command="ls -lRrt /*; sleep 60" --env=file:///test/env.json

How should this be resolved? I tried setting 
--executor_environment_variables=/etc/mesos/executor-env.json