Change line has wrong diff indicators about java-diff-utils HOT 1 OPEN

if you use "abcde" and "ab*de" it will show a single change from 'c' to '*' but 
this shows what the algorighm is doing "wrong". If it is thinking in terms of 
inserts and deletes only for "aaaaa" -> "aa*aa", there is no difference between 
the steps a, a, delete-a, insert-*, a, a and the steps a, a, insert-*, a, a, 
delete-a and it only happens when there are repeated characters (in this case 
'a' characters) after the change point. I'm guessing the delete-insert when 
together turn into a change but the delete and insert separated by two 'a' 
characters wouldn't. So ... if you decide it is a bug, the problem is in the 
way the diff algorithm weighs the cost of inserts and deletes when optimizing. 
Deletes and inserts that are next to each other can turn into a change and 
should weigh, together, the same as a single delete or insert.