daemon: Daemon.ContainerStats: don't escape HTML in responses

We have no need for it, and keeps the response more readable in case
it would ever contain any values that need escaping; it also would save
some cycles to check for such characters.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

daemon/stats.go

@@ -58,6 +58,7 @@ func (daemon *Daemon) ContainerStats(ctx context.Context, prefixOrName string, c
 	)
 
 	enc := json.NewEncoder(config.OutStream())
+	enc.SetEscapeHTML(false)
 	for {
 		select {
 		case v, ok := <-updates: