code: func FprintVersion(w io.Writer) {
  	fmt.Fprintln(w, os.Args[0], Package, Version)
  }
docs: // FprintVersion outputs the version string to the writer, in the following
  // format, followed by a newline:
  //
  // 	<cmd> <project> <version>
  //
  // For example, a binary "registry" built from github.com/docker/distribution
  // with version "v2.0" would print the following:
  //
  // 	registry github.com/docker/distribution v2.0
  //