message: fix include guard
diff: -#ifndef VOXBLOX_TEST_LAYER_UTILS_H_
  -#define VOXBLOX_TEST_LAYER_UTILS_H_
  +#ifndef VOXBLOX_UTILS_LAYER_UTILS_H_
  +#define VOXBLOX_UTILS_LAYER_UTILS_H_
  #include "voxblox/core/layer.h"
  #include "voxblox/core/voxel.h"
  @@ -114,4 +114,4 @@ bool isSameVoxel(const OccupancyVoxel& voxel_A, const OccupancyVoxel& voxel_B);
  } // namespace utils
  } // namespace voxblox
  -#endif // VOXBLOX_TEST_LAYER_UTILS_H_
  +#endif // VOXBLOX_UTILS_LAYER_UTILS_H_
  