packer-cn/.github/PULL_REQUEST_TEMPLATE.md

Describe the change you are making here!

Please include tests. Check out these examples:

• https://github.com/mitchellh/packer/blob/master/builder/virtualbox/common/ssh_config_test.go#L19-L37
• https://github.com/mitchellh/packer/blob/master/post-processor/compress/post-processor_test.go#L153-L182

If your PR resolves any open issue(s), please indicate them like this so they will be closed when your PR is merged:

Closes #xxx Closes #xxx