fix nginx domain count bug
fix nginx domain count bug

bkeep/tsar,tangyiyong/tsar,leexingwang/tsar,alibaba/tsar,justintung/tsar,xdddyzxzjyqc/monitorhp,justintung/tsar,efengcloud/tsar,alibaba/tsar,tangyiyong/tsar,efengcloud/tsar,allen-zkm/tsar,kongjian/tsar,bkeep/tsar,xdddyzxzjyqc/monitorhp,billychou/tsar,billychou/tsar,allen-zkm/tsar,kongjian/tsar,leexingwang/tsar