probably the end value is negative number in ServiceController.java

[jiangcaijun]

Issue Description

for com.alibaba.nacos.naming.controllers.ServiceController ,
probably：end value is negative number when start is negative

Related code is :

int start = (pageNo - 1) * pageSize;
int end = start + pageSize;

if (start < 0) {
    start = 0;
}