Set work_dir flag for mesos-local.
Set work_dir flag for mesos-local.

Review: https://reviews.apache.org/r/21562

asamerh4/mesos,kaysoky/mesos,chhsia0/mesos,dforsyth/mesos,Aman-Jain-14/customizedMesos,verizonlabs/mesos,gsantovena/mesos,chhsia0/mesos,craimbert/mesos,chhsia0/mesos,Aman-Jain-14/customizedMesos,gsantovena/mesos,reneploetz/mesos,neilconway/mesos,abudnik/mesos,dforsyth/mesos,dforsyth/mesos,dforsyth/mesos,neilconway/mesos,Aman-Jain-14/customizedMesos,neilconway/mesos,reneploetz/mesos,gsantovena/mesos,verizonlabs/mesos,gsantovena/mesos,reneploetz/mesos,neilconway/mesos,abudnik/mesos,asamerh4/mesos,asamerh4/mesos,craimbert/mesos,dforsyth/mesos,jpeach/mesos,reneploetz/mesos,chhsia0/mesos,verizonlabs/mesos,yuquanshan/customizedMesos,asamerh4/mesos,Gilbert88/mesos,yuquanshan/customizedMesos,andschwa/mesos,verizonlabs/mesos,dforsyth/mesos,asamerh4/mesos,zmalik/mesos,zmalik/mesos,jpeach/mesos,zmalik/mesos,Gilbert88/mesos,Gilbert88/mesos,jpeach/mesos,abudnik/mesos,andschwa/mesos,zmalik/mesos,reneploetz/mesos,Aman-Jain-14/customizedMesos,abudnik/mesos,yuquanshan/customizedMesos,kaysoky/mesos,andschwa/mesos,chhsia0/mesos,reneploetz/mesos,zmalik/mesos,kaysoky/mesos,Aman-Jain-14/customizedMesos,craimbert/mesos,Gilbert88/mesos,gsantovena/mesos,asamerh4/mesos,neilconway/mesos,jpeach/mesos,andschwa/mesos,craimbert/mesos,dforsyth/mesos,jpeach/mesos,chhsia0/mesos,abudnik/mesos,kaysoky/mesos,neilconway/mesos,kaysoky/mesos,gsantovena/mesos,Aman-Jain-14/customizedMesos,gsantovena/mesos,craimbert/mesos,andschwa/mesos,yuquanshan/customizedMesos,Gilbert88/mesos,reneploetz/mesos,kaysoky/mesos,jpeach/mesos,Gilbert88/mesos,verizonlabs/mesos,abudnik/mesos,jpeach/mesos,chhsia0/mesos,yuquanshan/customizedMesos,asamerh4/mesos,zmalik/mesos,craimbert/mesos,Gilbert88/mesos,verizonlabs/mesos,verizonlabs/mesos,kaysoky/mesos,zmalik/mesos,andschwa/mesos,abudnik/mesos,andschwa/mesos,neilconway/mesos,yuquanshan/customizedMesos,yuquanshan/customizedMesos,Aman-Jain-14/customizedMesos,craimbert/mesos