Merge pull request #5323 from jongwu/fix_bps_limit

run: fix GetList return empty issue for throttledevice

opts/throttledevice.go

@@ -94,7 +94,7 @@ func (opt *ThrottledeviceOpt) String() string {
 
 // GetList returns a slice of pointers to ThrottleDevices.
 func (opt *ThrottledeviceOpt) GetList() []*blkiodev.ThrottleDevice {
-	out := make([]*blkiodev.ThrottleDevice, 0, len(opt.values))
+	out := make([]*blkiodev.ThrottleDevice, len(opt.values))
 	copy(out, opt.values)
 	return out
 }