explicitly reject PKG.metadata.json files
explicitly reject PKG.metadata.json files

$pkgname.metadata.json files are now generated by the builds. We need to
reject these from the collection of artifacts we upload.

brettcave/chef,Altiscale/omnibus-chef,mikedodge04/chef,mal/chef,webframp/chef,Altiscale/omnibus-chef,robmul/chef,BackSlasher/chef,juliandunn/chef,josb/chef,chef/chef-dk,mattray/omnibus-chef,youngjl1/chef,higanworks/chef,strangelittlemonkey/chef,Tensibai/chef,sekrett/chef,onlyhavecans/chef,mal/chef,criteo-forks/chef,jkerry/chef,juliandunn/chef,sanditiffin/chef,chef/opscode-pushy-client,strangelittlemonkey/chef,brettcave/chef,tas50/chef-dk,mattray/omnibus-chef,natewalck/chef,sanditiffin/chef,chef/chef-dk,oclaussen/chef,strangelittlemonkey/chef,ranjib/chef,mikedodge04/chef,juliandunn/omnibus-chef,zuazo-forks/chef,sanditiffin/chef,tas50/chef-dk,jonlives/omnibus-chef,gene1wood/chef,ranjib/chef,ranjib/chef,tknerr/omnibus-chef,criteo-forks/chef,mattray/chef,jonlives/chef,MsysTechnologiesllc/chef,webframp/chef,aaron-lane/chef,mikedodge04/chef,fastly/omnibus-chef,juliandunn/chef,webframp/chef,docwhat/chef,tas50/omnibus-chef,mattray/omnibus-chef,smurawski/chef,tas50/chef-1,natewalck/chef,mal/chef,evan2645/chef,tbunnyman/chef,smurawski/chef,evan2645/chef,webframp/chef,Ppjet6/chef,zackp30/omnibus-chef,mwrock/chef,youngjl1/chef,ChaosCloud/chef,sekrett/chef,tomdoherty/chef,nvwls/chef,robmul/chef,jonlives/chef,b002368/chef-repo,juliandunn/omnibus-chef,josb/chef,zuazo-forks/chef,adamleff/omnibus-chef,gene1wood/chef,nvwls/chef,jaymzh/chef,smurawski/chef,mwrock/chef,chef/opscode-pushy-client,oclaussen/chef,ChaosCloud/chef,BackSlasher/chef,adamleff/omnibus-chef,sekrett/chef,josb/chef,fastly/omnibus-chef,tbunnyman/chef,martinisoft/chef,robmul/chef,strangelittlemonkey/chef,someara/chef,b002368/chef-repo,chef/opscode-pushy-client,onlyhavecans/chef,3dinfluence/chef,MsysTechnologiesllc/chef,tomdoherty/chef,BackSlasher/chef,brettcave/chef,tknerr/omnibus-chef,sanditiffin/chef,Ppjet6/chef,adamleff/omnibus-chef,someara/chef,tomdoherty/chef,brettcave/chef,Tensibai/chef,josb/chef,tbunnyman/chef,chef/chef,docwhat/chef,sanditiffin/chef,nathwill/chef,strangelittlemonkey/chef,sanditiffin/chef,chef/chef,Kast0rTr0y/chef,mwrock/chef,osuosl/omnibus-chef,robmul/chef,rhass/omnibus-chef,docwhat/chef,higanworks/chef,evan2645/chef,Kast0rTr0y/chef,oclaussen/chef,tas50/chef-1,mwrock/chef,onlyhavecans/chef,someara/chef,Tensibai/chef,BackSlasher/chef,Ppjet6/chef,higanworks/chef,zuazo-forks/chef,aaron-lane/chef,tas50/chef-1,robmul/chef,mattray/chef,martinisoft/chef,tas50/omnibus-chef,nathwill/chef,jonlives/omnibus-chef,tknerr/omnibus-chef,brettcave/chef,onlyhavecans/chef,brettcave/chef,zuazo-forks/chef,3dinfluence/chef,vinyar/chef-dk,smurawski/chef,tas50/chef-dk,Tensibai/chef,tbunnyman/chef,natewalck/chef,youngjl1/chef,Kast0rTr0y/chef,nvwls/chef,jkerry/chef,jkerry/chef,b002368/chef-repo,nathwill/chef,oclaussen/chef,josb/chef,jonlives/chef,zuazo-forks/chef,gene1wood/chef,jkerry/chef,natewalck/chef,nvwls/chef,someara/chef,strangelittlemonkey/chef,natewalck/chef,criteo-forks/chef,tbunnyman/chef,sekrett/chef,docwhat/chef,chef/chef,webframp/chef,3dinfluence/chef,tomdoherty/chef,robmul/chef,osuosl/omnibus-chef,mikedodge04/chef,evan2645/chef,onlyhavecans/chef,jonlives/chef,juliandunn/chef,jonlives/chef,jkerry/chef,martinisoft/chef,tas50/omnibus-chef,webframp/chef,Altiscale/omnibus-chef,higanworks/chef,someara/chef,aaron-lane/chef,martinisoft/chef,BackSlasher/chef,sekrett/chef,ChaosCloud/chef,juliandunn/chef,mal/chef,vinyar/chef-dk,oclaussen/chef,sekrett/chef,martinisoft/chef,chef/chef-dk,mal/chef,evan2645/chef,nathwill/chef,ChaosCloud/chef,mikedodge04/chef,rhass/omnibus-chef,juliandunn/omnibus-chef,smurawski/chef,mal/chef,oclaussen/chef,Kast0rTr0y/chef,MsysTechnologiesllc/chef,tas50/chef-1,nvwls/chef,docwhat/chef,3dinfluence/chef,mattray/chef,josb/chef,ChaosCloud/chef,smurawski/chef,jonlives/omnibus-chef,jonlives/chef,vinyar/chef-dk,3dinfluence/chef,youngjl1/chef,nathwill/chef,Kast0rTr0y/chef,3dinfluence/chef,Ppjet6/chef,MsysTechnologiesllc/chef,ranjib/chef,nvwls/chef,b002368/chef-repo,zackp30/omnibus-chef,docwhat/chef,mattray/chef,gene1wood/chef,tbunnyman/chef,criteo-forks/chef,zuazo-forks/chef,Ppjet6/chef,ranjib/chef,Kast0rTr0y/chef,aaron-lane/chef,Tensibai/chef,aaron-lane/chef,criteo-forks/chef,aaron-lane/chef,b002368/chef-repo,jaymzh/chef,jaymzh/chef,fastly/omnibus-chef,b002368/chef-repo,jkerry/chef,higanworks/chef,someara/chef,natewalck/chef,osuosl/omnibus-chef,ranjib/chef,chef/chef,BackSlasher/chef,ChaosCloud/chef,youngjl1/chef,rhass/omnibus-chef,mikedodge04/chef,Ppjet6/chef,nathwill/chef,youngjl1/chef,mattray/chef,jaymzh/chef,onlyhavecans/chef,evan2645/chef,tomdoherty/chef,zackp30/omnibus-chef,criteo-forks/chef