Fixed jenkins/reviewbot.sh to work with updated verify-reviews.py.
Fixed jenkins/reviewbot.sh to work with updated verify-reviews.py.

Review: https://reviews.apache.org/r/68714/

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