org-e-publish: Mirror changes made to org-publish.el

* contrib/lisp/org-e-publish.el (org-e-publish-cache-ctime-of-src):
  Change signature.
(org-e-publish-update-timestamp,
org-e-publish-cache-file-needs-publishing): Apply signature change.

See commit f71db4e509c132b917fb5bcf37084f4e5a8504ca.

contrib/lisp/org-e-publish.el

@@ -350,7 +350,7 @@ still decide about that independently."
   "Update publishing timestamp for file FILENAME.
 If there is no timestamp, create one."
   (let ((key (org-e-publish-timestamp-filename filename pub-dir pub-func))
-	(stamp (org-e-publish-cache-ctime-of-src filename base-dir)))
+	(stamp (org-e-publish-cache-ctime-of-src filename)))
     (org-e-publish-cache-set key stamp)))
 
 (defun org-e-publish-remove-all-timestamps ()
@@ -1132,14 +1132,11 @@ the file including them will be republished as well."
 	(while (re-search-forward
 		"^#\\+INCLUDE:[ \t]+\"\\([^\t\n\r\"]*\\)\"[ \t]*.*$" nil t)
 	  (let* ((included-file (expand-file-name (match-string 1))))
-	    (add-to-list
+	    (add-to-list 'included-files-ctime
-	     'included-files-ctime
+			 (org-e-publish-cache-ctime-of-src included-file) t))))
-	     (org-e-publish-cache-ctime-of-src included-file base-dir)
-	     t))))
-      ;; FIXME: don't kill current buffer.
       (unless visiting (kill-buffer buf)))
     (if (null pstamp) t
-      (let ((ctime (org-e-publish-cache-ctime-of-src filename base-dir)))
+      (let ((ctime (org-e-publish-cache-ctime-of-src filename)))
 	(or (< pstamp ctime)
 	    (when included-files-ctime
 	      (not (null (delq nil (mapcar (lambda(ct) (< ctime ct))
@@ -1191,10 +1188,11 @@ Returns value on success, else nil."
     (error "`org-e-publish-cache-set' called, but no cache present"))
   (puthash key value org-e-publish-cache))
 
-(defun org-e-publish-cache-ctime-of-src (f base-dir)
+(defun org-e-publish-cache-ctime-of-src (file)
-  "Get the FILENAME ctime as an integer."
+  "Get the ctime of FILE as an integer."
   (let ((attr (file-attributes
-	       (expand-file-name (or (file-symlink-p f) f) base-dir))))
+	       (expand-file-name (or (file-symlink-p file) file)
+				 (file-name-directory file)))))
     (+ (lsh (car (nth 5 attr)) 16)
        (cadr (nth 5 attr)))))