code: func (a *ArchiveOptions) Init() {
  	a.Blacklist = stringlistflag.Flag{}
  	a.PathVariables = map[string]string{}
  	if runtime.GOOS == "windows" {
  		a.PathVariables["EXECUTABLE_SUFFIX"] = ".exe"
  	} else {
  		a.PathVariables["EXECUTABLE_SUFFIX"] = ""
  	}
  	a.ExtraVariables = map[string]string{}
  	a.ConfigVariables = map[string]string{}
  }
docs: // Init initializes with non-nil values.