Fix type error in watermark list handling.
Fix type error in watermark list handling.

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