curl, mercurial specified only if not already defined
curl, mercurial specified only if not already defined

AAlvz/dcoxall-golang,dcoxall/dcoxall-golang,imdario/puppet-go,imdario/puppet-go,signalfx/puppet-go,signalfx/puppet-go,leventyalcin/dcoxall-golang,AAlvz/dcoxall-golang,vrtxf/puppet-go,leventyalcin/dcoxall-golang,signalfx/puppet-go,vrtxf/puppet-go,vrtxf/puppet-go