code: public void append(Object object, String indentation) {
  		append(object, indentation, segments.size());
  	}
docs: Add the string representation of the given object to this sequence. The given indentation will be prepended to
  each line except the first one if the object has a multi-line string representation.
  
  @param object
  the appended object.
  @param indentation
  the indentation string that should be prepended. May not be <code>null</code>.