calendar/time-date.el (format-seconds): Comment fix.

lisp/ChangeLog

+2010-09-22  Katsumi Yamaoka  <yamaoka@jpl.org>
+
+	* calendar/time-date.el (format-seconds): Comment fix.
+
 2010-09-22  Glenn Morris  <rgm@gnu.org>
 	* emacs-lisp/package.el (package-menu-mode): `revert-buffer-function'

lisp/calendar/time-date.el

@@ -317,10 +317,10 @@ This function does not work for SECONDS greater than `most-positive-fixnum'."
       (setq start (match-end 0)
             spec (match-string 1 string))
       (unless (string-equal spec "%")
-	;; `assoc-string' is not available in XEmacs or Emacs 21.  So when
-	;; compiling Gnus (`time-date.el' is part of Gnus) with XEmacs or
-	;; Emacs 21, we get a warning here.  But `format-seconds' is not
-	;; used anywhere in Gnus so it's not a real problem. --rsteib
+	;; `assoc-string' is not available in XEmacs.  So when compiling
+	;; Gnus (`time-date.el' is part of Gnus) with XEmacs, we get
+	;; a warning here.  But `format-seconds' is not used anywhere in
+	;; Gnus so it's not a real problem. --rsteib
         (or (setq match (assoc-string spec units t))
             (error "Bad format specifier: `%s'" spec))
         (if (assoc-string spec usedunits t)