Ticket #47774 mem leak in do_search - rawbase not freed upon certain errors
    
    https://fedorahosted.org/389/ticket/47774
    Reviewed by: nhosoi (Thanks!)
    Branch: 389-ds-base-1.3.2
    Fix Description: Free the local rawbase variable if it was not set in the
    pblock.
    Platforms tested: RHEL6 x86_64
    Flag Day: no
    Doc impact: no
    (cherry picked from commit 1d5c6d6ca300a45305dba631a334ae9a1857d4cb)