func (p VersionPtrs) Less(i, j int) bool {
	if p[i] == nil {
		return false
	} else if p[j] == nil {
		return true
	}
	return less(p[i], p[j])
}
// Less implements the sort.Interface.
Less implements the sort.Interface.
// Less implements the sort . Interface .
func (p VersionPtrs) Less(i, j int) bool {
	if p[i] == nil {
		return false
	} else if p[j] == nil {
		return true
	}
	return less(p[i], p[j])
}
func ( p VersionPtrs ) Less ( i , j int ) bool { if p [ i ] == nil { return false } else if p [ j ] == nil { return true } return less ( p [ i ] , p [ j ] ) }
Less implements the sort.Interface.
Less implements the sort . Interface .