QList insert behaviour addendum

QList::insert states the following:

"Inserts value at index position i in the list. If i is 0, the value is prepended to the list. If i is size(), the value is appended to the list."

But the actual implementation would be better documented as:

"Inserts value at index position i in the list. If i <= 0, the value is prepended to the list. If i >= size(), the value is appended to the list."