code: func LoadDefaultConfigFile(stderr io.Writer) *configfile.ConfigFile {
  	configFile, err := Load(Dir())
  	if err != nil {
  		fmt.Fprintf(stderr, "WARNING: Error loading config file: %v\n", err)
  	}
  	if !configFile.ContainsAuth() {
  		configFile.CredentialsStore = credentials.DetectDefaultStore(configFile.CredentialsStore)
  	}
  	return configFile
  }
docs: // LoadDefaultConfigFile attempts to load the default config file and returns
  // an initialized ConfigFile struct if none is found.