message: fix header guard for constant acceleration
diff: // This work is licensed under the terms of the MIT license.
  // For a copy, see <https://opensource.org/licenses/MIT>.
  -#ifndef BARK_MODELS_BEHAVIOR_CONSTANT_VELOCITY_CONSTANT_ACCELERATION_HPP_
  -#define BARK_MODELS_BEHAVIOR_CONSTANT_VELOCITY_CONSTANT_ACCELERATION_HPP_
  +#ifndef BARK_MODELS_BEHAVIOR_CONSTANT_ACCELERATION_CONSTANT_ACCELERATION_HPP_
  +#define BARK_MODELS_BEHAVIOR_CONSTANT_ACCELERATION_CONSTANT_ACCELERATION_HPP_
  #include <memory>
  #include <utility>
  @@ -61,4 +61,4 @@ inline std::shared_ptr<BehaviorModel> BehaviorConstantAcceleration::Clone() cons
  } // namespace models
  } // namespace bark
  -#endif // BARK_MODELS_BEHAVIOR_CONSTANT_VELOCITY_CONSTANT_ACCELERATION_HPP_
  +#endif // BARK_MODELS_BEHAVIOR_CONSTANT_ACCELERATION_CONSTANT_ACCELERATION_HPP_
  