Ticket #48366 - proxyauth does not work bound as directory manager
    
    Description: Coverity Defect type: RESOURCE_LEAK
    aclplugin.c:131,151: leaked_storage: Variable "proxy_dn" going out
    of scope leaks the storage it points to.
    
    Even if proxy_dn is allocated, the return value of proxyauth_get_dn
    could be other than LDAP_SUCCESS.