Fixing plain format in ctl

cmd/circologctl/main.go

@@ -76,6 +76,7 @@ func statusCmd(args []string) error {
 	case "plain":
 		fmt.Printf("Buffer Size:   %d\n", respJSON["status"].Size)
 		fmt.Printf("Server Status: %s\n", respJSON["status"].Status())
+		fmt.Printf("Filter String: %s\n", respJSON["status"].Filter)
 	}
 	return nil
 }