func hostSeries() (string, error) {
	var err error
	seriesOnce.Do(func() {
		series, err = readSeries()
		if err != nil {
			seriesErr = errors.Annotate(err, "cannot determine host series")
		}
	})
	return series, seriesErr
}
// hostSeries returns the series of the machine the current process is
// running on.
hostSeries returns the series of the machine the current process is
running on.
// hostSeries returns the series of the machine the current process is // running on .
func hostSeries() (string, error) {
	var err error
	seriesOnce.Do(func() {
		series, err = readSeries()
		if err != nil {
			seriesErr = errors.Annotate(err, "cannot determine host series")
		}
	})
	return series, seriesErr
}
func hostSeries ( ) ( string , error ) { var err error seriesOnce . Do ( func ( ) { series , err = readSeries ( ) if err != nil { seriesErr = errors . Annotate ( err , " " ) } } ) return series , seriesErr }
hostSeries returns the series of the machine the current process is
running on.
hostSeries returns the series of the machine the current process is running on .