Update file exclusion list for `make format`.
Update file exclusion list for `make format`.

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