X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/368cb23fe249334bf9d230755ae07b6410ac6852..c87c2cad94ab0570846015dcef91a38e84317be9:/lisp/dired.el

diff --git a/lisp/dired.el b/lisp/dired.el
index 2a65bd09cc..38979b5244 100644
--- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -3357,7 +3357,12 @@ object files--just `.o' will mark more than you might think."
 (defun dired-mark-files-containing-regexp (regexp &optional marker-char)
   "Mark all files with contents containing REGEXP for use in later commands.
 A prefix argument means to unmark them instead.
-`.' and `..' are never marked."
+`.' and `..' are never marked.
+
+Note that if a file is visited in an Emacs buffer, this command will
+look in the buffer without revisiting the file, so the results might
+be inconsistent with the file on disk if its contents has changed
+since it was last visited."
   (interactive
    (list (read-regexp (concat (if current-prefix-arg "Unmark" "Mark")
                               " files containing (regexp): ")