Fixed the ordering of the stream operator overload for RLimitInfo.
Fixed the ordering of the stream operator overload for RLimitInfo.

This patch moves the declaration of the `operator<<` overload
for the `RLimitInfo` protobuf message to be consistent with the
ordering of its definition, which is in alphabetical order.

Review: https://reviews.apache.org/r/57933/

verizonlabs/mesos,chhsia0/mesos,verizonlabs/mesos,kaysoky/mesos,jpeach/mesos,chhsia0/mesos,chhsia0/mesos,jpeach/mesos,andschwa/mesos,zmalik/mesos,craimbert/mesos,craimbert/mesos,kaysoky/mesos,andschwa/mesos,zmalik/mesos,craimbert/mesos,neilconway/mesos,chhsia0/mesos,gsantovena/mesos,jpeach/mesos,zmalik/mesos,dforsyth/mesos,Gilbert88/mesos,abudnik/mesos,gsantovena/mesos,chhsia0/mesos,kaysoky/mesos,craimbert/mesos,neilconway/mesos,dforsyth/mesos,asamerh4/mesos,kaysoky/mesos,zmalik/mesos,neilconway/mesos,Gilbert88/mesos,abudnik/mesos,reneploetz/mesos,asamerh4/mesos,neilconway/mesos,Gilbert88/mesos,asamerh4/mesos,kaysoky/mesos,zmalik/mesos,jpeach/mesos,gsantovena/mesos,reneploetz/mesos,reneploetz/mesos,zmalik/mesos,verizonlabs/mesos,dforsyth/mesos,neilconway/mesos,Gilbert88/mesos,reneploetz/mesos,andschwa/mesos,jpeach/mesos,abudnik/mesos,andschwa/mesos,Gilbert88/mesos,asamerh4/mesos,asamerh4/mesos,craimbert/mesos,abudnik/mesos,Gilbert88/mesos,kaysoky/mesos,dforsyth/mesos,andschwa/mesos,dforsyth/mesos,gsantovena/mesos,gsantovena/mesos,Gilbert88/mesos,abudnik/mesos,asamerh4/mesos,verizonlabs/mesos,andschwa/mesos,reneploetz/mesos,verizonlabs/mesos,jpeach/mesos,reneploetz/mesos,reneploetz/mesos,gsantovena/mesos,zmalik/mesos,neilconway/mesos,asamerh4/mesos,abudnik/mesos,verizonlabs/mesos,chhsia0/mesos,abudnik/mesos,craimbert/mesos,craimbert/mesos,verizonlabs/mesos,gsantovena/mesos,dforsyth/mesos,dforsyth/mesos,chhsia0/mesos,andschwa/mesos,neilconway/mesos,jpeach/mesos,kaysoky/mesos