that a Japanese character is not appended after day and year.
"\\|" yyyy s s "?"
"\\|" s "?" yyyy
"\\)"))
- (japanese (concat mm k s dd k s "\\(" s HH:MM "\\|" yyyy k "\\)")))
+ (japanese
+ (concat mm k s dd k "?" s "\\(" s HH:MM "\\|" yyyy k "?" "\\)")))
;; The "[0-9]" below requires the previous column to end in a digit.
;; This avoids recognizing `1 may 1997' as a date in the line:
;; -r--r--r-- 1 may 1997 1168 Oct 19 16:49 README