* lisp/files.el: Comment.

diff --git a/lisp/files.el b/lisp/files.el
index bafae81475643434745c101a1d940c932d43dfcb..add38df5c4f6eced3fa51030b1db2f5a91556efa 100644 (file)
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -5848,6 +5848,9 @@ normally equivalent short `-D' option is just passed on to
                                  (file-name-directory file)
                                (file-name-directory (expand-file-name file))))
                            (pattern (file-name-nondirectory file)))
+                       ;; NB since switches is passed to the shell, be
+                       ;; careful of malicious values, eg "-l;reboot".
+                       ;; See eg dired-safe-switches-p.
                        (call-process
                         shell-file-name nil t nil
                         "-c"