message: Fixes typo in Sort description.
diff: @@ -2002,7 +2002,7 @@ XlaOp Rev(const XlaOp& operand, absl::Span<const int64> dimensions);
  // the last dimension is chosen by default.
  //
  // If both keys and values are provided:
  -// * The keys and the values must tensors with the same dimensions. The
  +// * The keys and the values must be tensors with the same dimensions. The
  // element types of the tensors may be different.
  // * The result is a tuple that consists of a sorted tensor of keys (along the
  // provided dimension, as above) as the first element, and a tensor with their
  