golang-github-spf13-cobra-dev 0.0~git20150917.0.53d9650-1 (amd64 binary) in ubuntu xenial

 Cobra is a commander providing a simple interface to create powerful
 modern CLI interfaces similar to git & go tools. In addition to providing
 an interface, Cobra simultaneously provides a controller to organize your
 application code.
 .
 Inspired by go, go-Commander, gh and subcommand, Cobra improves on
 these by providing fully POSIX-compliant flags (including short & long
 versions), nesting commands, and the ability to define your own help
 and usage for any or all commands.
 .
 Cobra has an exceptionally clean interface and simple design without
 needless constructors or initialization methods.