Ticket #324 - redux: Sync with group attribute containing () fails
    
    https://fedorahosted.org/389/ticket/324
    Resolves: Ticket #324
    Bug Description: Sync with group attribute containing () fails
    Reviewed by: nhosoi (Thanks!)
    Branch: master
    Fix Description: Previous fix broke cases that did not need escaping.  Have
    to use the return value of escape_filter_value() rather than use the buffer
    passed to that function.  If the value doesn't need escaping, the original
    value is returned, and the buffer is empty.
    Platforms tested: RHEL6 x86_64
    Flag Day: no
    Doc impact: no