message: Fix wrong class name in CudaError::get_error
diff: @@ -36,7 +36,7 @@ void GpuExecutor::raw_copy_to(const GpuExecutor *, size_type num_bytes,
  void GpuExecutor::synchronize() const NOT_COMPILED(gpu);
  -std::string GpuExecutor::get_error(int64 error_code)
  +std::string CudaError::get_error(int64 error_code)
  {
  return "ginkgo CUDA module is not compiled";
  }
  