message: elle.lazy: fix documentation
diff: @@ -27,7 +27,7 @@ namespace elle
  | Construction |
  `-------------*/
  public:
  - /// Build a lazy that evaluates to the return value of \a lambda.
  + /// Build a lazy that evaluates to the return value of @a lambda.
  Lazy(Lambda const& lambda);
  /*------.
  @@ -54,7 +54,7 @@ namespace elle
  ELLE_ATTRIBUTE(boost::optional<Value>, value);
  };
  - /// Print the value of \a lazy into \a output.
  + /// Print the value of @a lazy into @a output.
  ///
  /// @param output The stream to print to.
  /// @param lazy The Lazy whose value to print.
  @@ -65,7 +65,7 @@ namespace elle
  /// Helper to create lazy values.
  ///
  - /// @return Lazy(\a f).
  + /// @return Lazy(@a f).
  template <typename F>
  auto
  lazy(F&& f) -> Lazy<decltype(f())>;
  