func NewNginxScraper() NginxScraper {
	return NginxScraper{}
}
NewNginxScraper creates new nginx status scraper
package scraper
import (
	"bufio"
	"errors"
	"io"
	"strconv"
	"strings"
	"github.com/monitoring-tools/prom-nginx-exporter/metric"
)
var (
	errIncorrectNginxStats = errors.New("incorrect nginx stats")
)
type NginxScraper struct{}