Ticket 49316 - fix missing not condition in clock cleanu
    
    Bug Description:  During the clock cleanup I removed a
    macro. This broke a not condition which caused 100% cpu
    load.
    
    Fix Description:  Add braces around the condition.
    
    https://pagure.io/389-ds-base/issue/49316
    
    Author: lkrispen
    
    Review by: wibrown (Thanks Ludwig!)