Fixed a comment typo in resources benchmark test.
Fixed a comment typo in resources benchmark test.

Review: https://reviews.apache.org/r/52599/

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