Ticket 47965 - Fix coverity issues (2014/11/24)
    
    12864 - nesting level adjustment - sync_presist.c
    12867 - Uninitialized pointer read - repl5_replica.c
    12870 - Unused value - repl5_ruv.c
    12880, 12881, 12893 - Unused value - dblayer.c
    12887 - nesting level adjustment - acl.c
    12894 - nesting level adjustment - acl_ext.c
    12898 - Logically dead code - acllas.c
    12891 - Unused value - windows_inc_protocol.c
    12902 - Unused value - repl5_inc_protocol.c
    
    https://fedorahosted.org/389/ticket/47965
    
    Reviewed by: rmeggins(Thanks!)
    
    (cherry picked from commit da90d57c30bf93265f06499b8ea2102378a0ed12)