Simplified a conditional check while validating framework id.
Simplified a conditional check while validating framework id.

Review: https://reviews.apache.org/r/46113/

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