Problem: "cgn" and "dgn" do not work correctly with a single character
match and the replacement includes the searched pattern. (John
Beckett)
Solution: If the match is found in the wrong column try in the next column.
Turn the test into new style. (Christian Brabandt)
Problem: Text deleted by "dit" depends on indent of closing tag.
(Jan Parthey)
Solution: Do not adjust oap->end in do_pending_operator(). (Christian
Brabandt)
Problem: match() does not work properly with a {count} argument.
Solution: Compute the length once and update it. Quit the loop when at the
end. (Hirohito Higashi)
Problem: "gn" selects too much for the pattern "\d" when there are two
lines with a single digit. (Ryan Carney)
Solution: Adjust the logic of is_one_char(). (Christian Brabandt)
