(font-lock-fontify-syntactically-region):

Pass t for GREEDY to looking-back.

diff --git a/lisp/font-lock.el b/lisp/font-lock.el
index 4ad82a39b7ea8c4a457e1cd89dd5ad163cd0b3ac..d2507474f12a62190f83e48e1bb39384d0bd4c01 100644 (file)
--- a/lisp/font-lock.el
+++ b/lisp/font-lock.el
@@ -1351,7 +1351,7 @@ START should be at the beginning of a line."
                                    comment-start-skip))
                    (put-text-property beg (match-end 0) 'face
                                       font-lock-comment-delimiter-face)))
-             (if (looking-back comment-end-regexp (point-at-bol))
+             (if (looking-back comment-end-regexp (point-at-bol) t)
                  (put-text-property (match-beginning 0) (point) 'face
                                     font-lock-comment-delimiter-face))))
          (< (point) end))