[Windows] Single bar duplicates when exactly terminal width

[benmurden]

Running the IO example given here https://github.com/vbauerster/mpb/blob/master/_examples/io/main.go with some modifications to prepend a long name, I have reproduced an issue I'm having where bars get duplicated once they reach the edge of the terminal window.

Actual code

```golang package main import ( "crypto/rand" "io" "io/ioutil" "time" "github.com/vbauerster/mpb/v5" "github.com/vbauerster/mpb/v5/decor" ) func main() { var total int64 = 1024 * 1024 * 1024 reader := io.LimitReader(rand.Reader, total) p := mpb.New( mpb.WithWidth(60), mpb.WithRefreshRate(180*time.Millisecond), ) bar := p.AddBar(total, mpb.BarStyle("[=>-|"), mpb.PrependDecorators( decor.Name("This is a really long name. I'm sorry it's so long but that's just the way it goes sometimes. "), decor.CountersKibiByte("% .2f / % .2f"), decor.Percentage(decor.WCSyncSpace), ), mpb.AppendDecorators( decor.EwmaETA(decor.ET_STYLE_GO, 90), decor.Name(" ] "), decor.EwmaSpeed(decor.UnitKiB, "% .2f", 60), ), ) // create proxy reader proxyReader := bar.ProxyReader(reader) defer proxyReader.Close() // copy from proxyReader, ignoring errors io.Copy(ioutil.Discard, proxyReader) p.Wait() } ```

The bar is clearly flexing to fill available space, but is still one character too long, it seems. Shorter names do not produce this issue.

OS: Windows 10

[nektro]

potential dupe of #55

[benmurden]

While it seems that way on the surface, I think this is a subtle bug, because the bar is being shrunk to fit the terminal width, but still wraps. Looks like the final size needs to be one or two characters shorter.

[vbauerster]

Can you please check master branch? Should be fixed.

[benmurden]

@vbauerster Looks good over here with the master branch. Thanks so much for your time and effort on this.

[vbauerster]

Thank you for reporting as well. I'll bump version soon.