Corrected a comment in reservation endpoint tests.
Corrected a comment in reservation endpoint tests.

Review: https://reviews.apache.org/r/41159

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