Ticket #348 - crash in ldap_initialize with multiple threads
    
    https://fedorahosted.org/389/ticket/348
    Resolves: Ticket #348
    Bug Description: crash in ldap_initialize with multiple threads
    Reviewed by: mreynolds (Thanks!)
    Branch: rhel-6.3
    Fix Description: ldclt was not calling PR_Init - needed in order to use
    PR_CallOnce
    Platforms tested: RHEL6 x86_64
    Flag Day: no
    Doc impact: no
    (cherry picked from commit 9368250f2db4353cec7b489cb48c9c1f192f5c90)