public LinkedList<Diff> diff_main(String text1, String text2) {
    return diff_main(text1, text2, true);
  }
Find the differences between two texts.
Run a faster, slightly less optimal diff.
This method allows the 'checklines' of diff_main() to be optional.
Most of the time checklines is wanted, so default to true.

@param text1 Old string to be diffed.
@param text2 New string to be diffed.
@return Linked List of Diff objects.
src/burp/Utils/diff_match_patch.java