Updated a comment about resubscribing completed frameworks.
Updated a comment about resubscribing completed frameworks.

Review: https://reviews.apache.org/r/63674

chhsia0/mesos,asamerh4/mesos,jpeach/mesos,reneploetz/mesos,Gilbert88/mesos,dforsyth/mesos,dforsyth/mesos,kaysoky/mesos,chhsia0/mesos,andschwa/mesos,jpeach/mesos,gsantovena/mesos,kaysoky/mesos,dforsyth/mesos,asamerh4/mesos,gsantovena/mesos,Gilbert88/mesos,gsantovena/mesos,gsantovena/mesos,dforsyth/mesos,abudnik/mesos,kaysoky/mesos,dforsyth/mesos,dforsyth/mesos,asamerh4/mesos,andschwa/mesos,asamerh4/mesos,abudnik/mesos,chhsia0/mesos,Gilbert88/mesos,Gilbert88/mesos,asamerh4/mesos,kaysoky/mesos,jpeach/mesos,abudnik/mesos,gsantovena/mesos,jpeach/mesos,Gilbert88/mesos,jpeach/mesos,abudnik/mesos,kaysoky/mesos,reneploetz/mesos,reneploetz/mesos,abudnik/mesos,jpeach/mesos,chhsia0/mesos,reneploetz/mesos,asamerh4/mesos,chhsia0/mesos,reneploetz/mesos,kaysoky/mesos,andschwa/mesos,andschwa/mesos,andschwa/mesos,andschwa/mesos,chhsia0/mesos,kaysoky/mesos,asamerh4/mesos,abudnik/mesos,reneploetz/mesos,dforsyth/mesos,Gilbert88/mesos,jpeach/mesos,abudnik/mesos,Gilbert88/mesos,reneploetz/mesos,andschwa/mesos,gsantovena/mesos,chhsia0/mesos,gsantovena/mesos