ispell-check-comments is 'exclusive and there are no more
comments. Just skip to the end instead.
(search-forward comment-end ispell-region-end t)))
((and (eq 'exclusive ispell-check-comments) comment-start
(string= key comment-end))
- (search-forward comment-start ispell-region-end t))
+ (search-forward comment-start ispell-region-end :end))
((and ispell-skip-tib (string-match ispell-tib-ref-beginning key))
(re-search-forward ispell-tib-ref-end ispell-region-end t))
((and ispell-skip-sgml (string-match "<" key))