tweak whitespace in device stats output

command/alloc_status.go

@@ -606,6 +606,7 @@ func (c *AllocStatusCommand) outputVerboseResourceUsage(task string, resourceUsa
 	}
 
 	if len(deviceStats) > 0 {
+		c.Ui.Output("")
 		c.Ui.Output("Device Stats")
 
 		printDeviceStats(c.Ui, deviceStats)

command/helper_stats.go

@@ -84,7 +84,7 @@ func printDeviceStats(ui cli.Ui, deviceGroupStats []*api.DeviceGroupStats) {
 	for _, dg := range deviceGroupStats {
 		for id, dinst := range dg.InstanceStats {
 			if !isFirst {
-				ui.Output("\n")
+				ui.Output("")
 			}
 			isFirst = false