retrieve gpg signing key via https
retrieve gpg signing key via https

benvaljean/chef-td-agent,PerfectMemory/chef-td-agent,treasure-data/chef-td-agent,PerfectMemory/chef-td-agent,joeyAghion/chef-td-agent,treasure-data/chef-td-agent,ijin/chef-td-agent,treasure-data/chef-td-agent,joeyAghion/chef-td-agent,ijin/chef-td-agent,benvaljean/chef-td-agent