With trailing spaces in some cases, we would not get the
"no justification at end of paragraph" special case, and continue
in the code, getting the unexpected case where line_length becomes
< 0 which would lead to memory corruption because we were writing
outside our buffers. I added an assert to catch this type of bug
earlier, and I added the trailing spaces to the test for the end
of the paragraph.
The test case added is one example which would crash.
Task-number: QTBUG-27354
Change-Id: Id720a6fa55dbc709ce04dd5321e55687bf960d75
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
248ccb2889