In King's Ques 1 (Apple IIGS version) wrong characters appear at the end of each line in the intro/credits scroll.
For example, if a line ends with "N" at the final characted space, that "N" repeats until another line writes a different character, which will repeat too.
It happens on DOS version too.
Was just fixed by commit c43ee3a7a5af5b6ff8b36de3d53fd267ded7caa0
Was a regression that I made when I rewrote the text wrapping code.