Range loops with ignored variables result in false-positives

There's another false positive which can occur when a range loop ignores all of its variables, as seen in [this finding](https://github.com/andyhao567/hids/blob/59d6677cf39b2ec55bdb439f6cac277a4270c990/agent/client/agent.go#L157-L203).

This range loop ranges over a channel and ignores the results returned from the ticker.

Click here for code

```go
for _ = range ticker.C {
ch := make(chan bool)
go func() {
err = a.Client.Call(a.ctx, "GetInfo", &common.ServerInfo, &common.Config)
if err != nil {
a.log("RPC Client Call:", err.Error())
return
}
ch <- true
}()
// Server集群列表获取
select {
case <-ch:
serverList, err := a.getServerList()
if err != nil {
a.log("RPC Client Call:", err.Error())
break
}
if len(serverList) == 0 {
a.log("No server node available")
break
}
if len(serverList) == len(a.ServerList) {
for i, server := range serverList {
// TODO 可能会产生问题
if server != a.ServerList[i] {
a.ServerList = serverList
// 防止正在传输重置client导致数据丢失
a.Mutex.Lock()
a.Client.Close()
a.newClient()
a.Mutex.Unlock()
break
}
}
} else {
a.log("Server nodes from old to new:", a.ServerList, "->", serverList)
a.ServerList = serverList
a.Mutex.Lock()
a.Client.Close()
a.newClient()
a.Mutex.Unlock()
}
case <-time.NewTicker(time.Second * 3).C:
break
}
}
```