code: func (r *Runner) RunGlob(files []string, err error) {
  	if err != nil {
  		r.t.Log("silk:", err)
  		r.t.FailNow()
  		return
  	}
  	r.RunFile(files...)
  }
docs: // RunGlob is a helper that runs the files returned by filepath.Glob.
  //     runner.RunGlob(filepath.Glob("pattern"))