Fixed a few style consistency issues in slave/flags.cpp.
Fixed a few style consistency issues in slave/flags.cpp.

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