Fixed incorrect stderr to stdout pipe routing in configuration phase.
Fixed incorrect stderr to stdout pipe routing in configuration phase.

Review: https://reviews.apache.org/r/18608

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