Consistency with Link field validation

Fields defined with the Link module allow values that omit the http:// prefix, for example "drupal.org". The Link module works correctly with them, supplying the prefix whenever needed. But Link checker sticks the site url on the front and, unsurprisingly, reports "http://mydomain.co.uk/drupal.org" as a broken link. I think Link checker should (at least as an option) apply the same rules as Link module and try the link with a simple "http://" prefix.