possible go lang exec.Command pipe/wait race

[skinowski]

Likely a bug, cmd.Wait() should not be called before all I/O is completed on stderr:

https://github.com/fnproject/hotwrap/blob/master/hotwrap.go#L78

(See: https://golang.org/pkg/os/exec/#Cmd.StderrPipe)

[zootalures]

Thanks good spot