Simplify `image-dired-dired-file-marked-p'

* lisp/image-dired.el (image-dired-dired-file-marked-p): Use
`dired-re-mark' instead of open-coding the opposite regexp (bug#14925).

diff --git a/lisp/image-dired.el b/lisp/image-dired.el
index cf878ae12232c1f338bc16fccc888dc0b1a893e4..b92a9371ec24d1ae951a9bb5f90e69d08daac1da 100644 (file)
--- a/lisp/image-dired.el
+++ b/lisp/image-dired.el
@@ -1387,7 +1387,7 @@ comment."
   "Check whether file on current line is marked or not."
   (save-excursion
     (beginning-of-line)
-    (not (looking-at "^ .*$"))))
+    (looking-at-p dired-re-mark)))
 
 (defun image-dired-modify-mark-on-thumb-original-file (command)
   "Modify mark in dired buffer.