module KnapsackPro

www.appveyor.com/docs/environment-variables/

codefresh.io/docs/docs/codefresh-yaml/variables/#system-provided-variables

help.github.com/en/actions/configuring-and-managing-workflows/using-environment-variables#default-environment-variables

docs.gitlab.com/ce/ci/variables/

docs.semaphoreci.com/article/12-environment-variables

based on github.com/rspec/rspec-core/blob/master/lib/rspec/core/formatters/json_formatter.rb