Improve docstring for chunk type flag.
Improve docstring for chunk type flag.

Gouthamve/prometheus,dmilstein/prometheus,amorken/prometheus,nicr9/prometheus,jimmidyson/prometheus,GoogleCloudPlatform/prometheus,SaltedMan/prometheus-annotated,iksaif/prometheus,RobertKielty/prometheus,cit-lab/prometheus,prometheus/prometheus,gcnonato/prometheus,jbdalido/prometheus,cit-lab/prometheus,thachmai/prometheus,wxdublin/prometheus,adamron1/prometheus,mrwacky42/prometheus,agaoglu/prometheus,tomwilkie/prometheus,Colstuwjx/prometheus,mtanda/prometheus,dmilstein/prometheus,msiebuhr/prometheus,Gouthamve/prometheus,nicr9/prometheus,yanghongkjxy/prometheus,alileza/prometheus,ton31337/prometheus,smyrman/prometheus,jmcfarlane/prometheus,gottwald/prometheus,brancz/prometheus,kangwoo/prometheus,cit-lab/prometheus,jmcfarlane/prometheus,dmilstein/prometheus,eliothedeman/prometheus,Colstuwjx/prometheus,PrFalken/prometheus,q3k/prometheus,cit-lab/prometheus,laushinka/prometheus,dpatel06/prometheus,abhishekamralkar/prometheus,AlekSi/prometheus,datajet-io/prometheus,flier/prometheus,wrouesnel/prometheus,JavierZunzunegui/prometheus,jmcfarlane/prometheus,laushinka/prometheus,msiebuhr/prometheus,Gouthamve/prometheus,Colstuwjx/prometheus,eliothedeman/prometheus,JavierZunzunegui/prometheus,dalanlan/prometheus,thachmai/prometheus,GoogleCloudPlatform/prometheus,RobertKielty/prometheus,kangwoo/prometheus,q3k/prometheus,msiebuhr/prometheus,kzittritsch/prometheus,gcnonato/prometheus,PrFalken/prometheus,laushinka/prometheus,flier/prometheus,tomwilkie/prometheus,dalanlan/prometheus,tomwilkie/prometheus,dln/prometheus,yanghongkjxy/prometheus,RobertKielty/prometheus,hustbill/prometheus,AlekSi/prometheus,adamron1/prometheus,jimmidyson/prometheus,mtanda/prometheus,q3k/prometheus,robbiet480/prometheus,alileza/prometheus,keegancsmith/prometheus,SaltedMan/prometheus-annotated,slok/prometheus,GoogleCloudPlatform/prometheus,mtanda/prometheus,ton31337/prometheus,tattsun/prometheus,agaoglu/prometheus,prometheus/prometheus,hustbill/prometheus,abhishekamralkar/prometheus,fabric8io/prometheus,gottwald/prometheus,rajthilakmca/prometheus,Stackdriver/stackdriver-prometheus,Conorbro/prometheus,fabric8io/prometheus,msiebuhr/prometheus,brancz/prometheus,AlekSi/prometheus,Conorbro/prometheus,alileza/prometheus,prasincs/prometheus,Stackdriver/stackdriver-prometheus,keegancsmith/prometheus,JavierZunzunegui/prometheus,wxdublin/prometheus,prasincs/prometheus,thachmai/prometheus,jmcfarlane/prometheus,kzittritsch/prometheus,datajet-io/prometheus,tattsun/prometheus,agaoglu/prometheus,amorken/prometheus,robbiet480/prometheus,q3k/prometheus,fabxc/prometheus,ton31337/prometheus,dsymonds/prometheus,rajthilakmca/prometheus,mrwacky42/prometheus,trigrass2/prometheus,keegancsmith/prometheus,tattsun/prometheus,PrFalken/prometheus,dln/prometheus,mrwacky42/prometheus,tattsun/prometheus,agaoglu/prometheus,fabxc/prometheus,mtanda/prometheus,wxdublin/prometheus,prometheus/prometheus,dln/prometheus,adamron1/prometheus,kangwoo/prometheus,jbdalido/prometheus,datajet-io/prometheus,dsymonds/prometheus,kangwoo/prometheus,gesellix/prometheus,robbiet480/prometheus,slok/prometheus,jbdalido/prometheus,alileza/prometheus,iksaif/prometheus,Conorbro/prometheus,prometheus/prometheus,Colstuwjx/prometheus,rajthilakmca/prometheus,eliothedeman/prometheus,bluecmd/prometheus,fabxc/prometheus,yanghongkjxy/prometheus,robbiet480/prometheus,prasincs/prometheus,laushinka/prometheus,alileza/prometheus,brancz/prometheus,gottwald/prometheus,rajthilakmca/prometheus,keegancsmith/prometheus,amorken/prometheus,abhishekamralkar/prometheus,dsymonds/prometheus,gottwald/prometheus,dmilstein/prometheus,jimmidyson/prometheus,prasincs/prometheus,sudhi-vm/prometheus,wrouesnel/prometheus,SaltedMan/prometheus-annotated,sudhi-vm/prometheus,wrouesnel/prometheus,GoogleCloudPlatform/prometheus,PrFalken/prometheus,iksaif/prometheus,JavierZunzunegui/prometheus,slok/prometheus,kzittritsch/prometheus,smyrman/prometheus,trigrass2/prometheus,hustbill/prometheus,prometheus/prometheus,gesellix/prometheus,Conorbro/prometheus,wndhydrnt/prometheus,thachmai/prometheus,datajet-io/prometheus,bluecmd/prometheus,jbdalido/prometheus,adamron1/prometheus,Gouthamve/prometheus,slok/prometheus,brancz/prometheus,sudhi-vm/prometheus,RobertKielty/prometheus,wndhydrnt/prometheus,keegancsmith/prometheus,GoogleCloudPlatform/prometheus,fabric8io/prometheus,wndhydrnt/prometheus,dln/prometheus,Dieterbe/prometheus,bluecmd/prometheus,gesellix/prometheus,smyrman/prometheus,eliothedeman/prometheus,Dieterbe/prometheus,trigrass2/prometheus,yanghongkjxy/prometheus,AlekSi/prometheus,abhishekamralkar/prometheus,gcnonato/prometheus,trigrass2/prometheus,Stackdriver/stackdriver-prometheus,hustbill/prometheus,dpatel06/prometheus,Stackdriver/stackdriver-prometheus,gesellix/prometheus,fabxc/prometheus,dsymonds/prometheus,dpatel06/prometheus,sudhi-vm/prometheus,ton31337/prometheus,dalanlan/prometheus,flier/prometheus,smyrman/prometheus,fabric8io/prometheus,wrouesnel/prometheus,iksaif/prometheus,gcnonato/prometheus,kzittritsch/prometheus,tomwilkie/prometheus,bluecmd/prometheus,amorken/prometheus,Dieterbe/prometheus,SaltedMan/prometheus-annotated,nicr9/prometheus