Fix metadata.json
Fix metadata.json

saimonn/puppet-postfix,mcanevet/puppet-postfix,micah/puppet-postfix,micah/puppet-postfix,craigwatson/puppet-postfix,craigwatson/puppet-postfix,camptocamp/puppet-postfix,saimonn/puppet-postfix,mcanevet/puppet-postfix,alexjfisher/puppet-postfix,alexjfisher/puppet-postfix,camptocamp/puppet-postfix