Ticket #48148 - start/stop/restart-dirsrv utilities should ignore admin-serv directory
    
    Description: {start,stop}-dirsrv script scans /etc/sysconfig/dirsrv-* to find
    out the server instances to start/stop, which could include dirsrv-admin for
    the Admin server if 389-admin is installed.
    
    This patch silently skips "dirsrv-admin" from the server start/stop.