Forster adopted the second suggestion. The passage reads: `Autumn days are shining, and on the sea-beach there are often a young lady, and a white-haired gentleman. With them, or near them, are two children: boy and girl. And an old dog is generally in their company.' Forster must have decided that the attribution of wilfulness to the faithful Diogenes would mar the benevolent harmony of the close.
Note from Charles Dickens, from Literary Anecdotes