Use thumbprint instead of cert_name
Use thumbprint instead of cert_name

cert_name is not required to be unique and
signtool.exe will fail if multiple certs
have the same cert_name

chef/omnibus,rapid7/omnibus,higanworks/omnibus,szechyjs/omnibus,pskrz/omnibus,adamleff/omnibus,ashhher3/omnibus,rhass/omnibus,adamleff/omnibus,3ofcoins/chef-omnibus,rhass/omnibus,pskrz/omnibus,3ofcoins/chef-omnibus,strangelittlemonkey/omnibus,pskrz/omnibus,rhass/omnibus,Altiscale/omnibus,rapid7/omnibus,sh9189/omnibus,Scalr/omnibus,mattray/omnibus,rapid7/omnibus,hugosato/omnibus,mattray/omnibus,jamesn/omnibus,higanworks/omnibus,intfrr/omnibus,szechyjs/omnibus,intfrr/omnibus,DataDog/omnibus-ruby,sh9189/omnibus,jamesn/omnibus,Scalr/omnibus,hugosato/omnibus,sh9189/omnibus,intfrr/omnibus,higanworks/omnibus,strangelittlemonkey/omnibus,hugosato/omnibus,ashhher3/omnibus,DataDog/omnibus-ruby,DataDog/omnibus-ruby,chef/omnibus,chef/omnibus,jamesn/omnibus,Scalr/omnibus,adamleff/omnibus,3ofcoins/chef-omnibus,strangelittlemonkey/omnibus,Altiscale/omnibus,ashhher3/omnibus,szechyjs/omnibus,Altiscale/omnibus,mattray/omnibus