add back running output

weed/shell/command_fs_meta_save.go

@@ -69,7 +69,7 @@ func (c *commandFsMetaSave) Do(args []string, commandEnv *CommandEnv, writer io.
 	}
 	defer dst.Close()
 
-	return doTraverseBfsAndSaving(commandEnv, writer, path, *verbose, func(outputChan chan interface{}) {
+	err = doTraverseBfsAndSaving(commandEnv, writer, path, *verbose, func(outputChan chan interface{}) {
 		sizeBuf := make([]byte, 4)
 		for item := range outputChan {
 			b := item.([]byte)
@@ -88,6 +88,12 @@ func (c *commandFsMetaSave) Do(args []string, commandEnv *CommandEnv, writer io.
 		return nil
 	})
 
+	if err == nil {
+		fmt.Fprintf(writer, "meta data for http://%s:%d%s is saved to %s\n", commandEnv.option.FilerHost, commandEnv.option.FilerPort, path, fileName)
+	}
+
+	return err
+
 }
 
 func doTraverseBfsAndSaving(commandEnv *CommandEnv, writer io.Writer, path string, verbose bool, saveFn func(outputChan chan interface{}), genFn func(entry *filer_pb.FullEntry, outputChan chan interface{}) error) error {