* lisp/files.el: Comment.

82137b51 · Glenn Morris · 0560d0ea · 82137b51
Commit 82137b51 authored Feb 28, 2011 by Glenn Morris
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--- 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"