message: Fix datetime doc comment typo
diff: @@ -85,7 +85,7 @@ private:
  public:
  /**
  - * @brief Construct a default instance of #Azure::DateTime (00:00:00.0000000 on Janualy
  + * @brief Construct a default instance of #Azure::DateTime (00:00:00.0000000 on January
  * 1st, 0001).
  */
  constexpr DateTime() : time_point() {}
  