[RFA] Document fallback behavior for target_so_ops same.

[Tristan Gingold]

On Feb 3, 2009, at 5:36 PM, Joel Brobecker wrote:
> Can you add "when set to NULL" at the end of your new sentence?
>
>          Falls back to using strcmp on so_original_name field
>          when set to NULL.

Committed with this sentence.  Thanks

Tristan.