Change the ldc.conf file output to match the newer Tango directory structure and only use libtango-user-ldc for the libs to match the 0.99.9 build instructions.

module c;

void main()
{
    ushort a = 0xFFF0;
    ushort b = 0x0FFF;
    auto t = a & b;
    a &= b;
    assert(t == a);
}