duckbrain/ldss: lib/dl/queue.go; 26 LoC

Found a possible issue in [duckbrain/ldss](https://www.github.com/duckbrain/ldss) at [lib/dl/queue.go](https://github.com/duckbrain/ldss/blob/c2b04549311af5bd8fe103e7280fe13dbf60eef7/lib/dl/queue.go#L129-L154)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first issue it finds, so please do not limit your consideration to the contents of the below message.

> range-loop variable dl used in defer or goroutine at line 135

[Click here to see the code in its original context.](https://github.com/duckbrain/ldss/blob/c2b04549311af5bd8fe103e7280fe13dbf60eef7/lib/dl/queue.go#L129-L154)

Click here to show the 26 line(s) of Go which triggered the analyzer.

```go
for dl := range newDownloads {
dls := make(chan Status)
go func() {
for s := range dls {
statusUpdates <- DownloadStatus{
Status: s,
Downloader: dl,
Stage: Progress,
}
}
}()
statusUpdates <- DownloadStatus{
Downloader: dl,
Stage: Started,
}
err := dl.Download(dls)
close(dls)
statusUpdates <- DownloadStatus{
Status: Status{
Err: err,
Progress: 1,
},
Downloader: dl,
Stage: Complete,
}
}

```

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commit ID: c2b04549311af5bd8fe103e7280fe13dbf60eef7