message: note about unused args to H5Acreate2
diff: @@ -266,6 +266,8 @@ impl AttributeBuilderInner {
  name.as_ptr(),
  datatype.id(),
  dataspace.id(),
  + // these args are currently unused as if HDF5 1.12
  + // see details: https://portal.hdfgroup.org/display/HDF5/H5A_CREATE2
  H5P_DEFAULT,
  H5P_DEFAULT,
  )))
  