585ffd7 LDAP: Copy URI instead of pointing at failover service record

Authored and Committed by sgallagh 8 years ago
    LDAP: Copy URI instead of pointing at failover service record
    
    In a heavy load environment, sometimes the failover service record
    would be updated and free the URI value. We need to guarantee that
    this URI string remains valid throughout the entire request.
    
    https://fedorahosted.org/sssd/ticket/1139