New lispref section “Security Considerations”

This attempts to document some of the issues recently discussed
on emacs-devel, and to indicate other such issues.  The section
could be a lot longer.
* doc/lispref/os.texi (Security Considerations):
New node.
* doc/lispref/elisp.texi (Top):
* doc/lispref/processes.texi (Shell Arguments):
* lisp/subr.el (shell-quote-argument):
* src/callproc.c (syms_of_callproc):
Reference it.

1 files changed, 2 insertions, 1 deletions

diff --git a/lisp/subr.el b/lisp/subr.el
index c903ee3c758..ea926ae1475 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -2714,7 +2714,8 @@ Note: :data and :device are currently not supported on Windows."
   "Quote ARGUMENT for passing as argument to an inferior shell.
 
 This function is designed to work with the syntax of your system's
-standard shell, and might produce incorrect results with unusual shells."
+standard shell, and might produce incorrect results with unusual shells.
+See Info node `(elisp)Security Considerations'."
   (cond
    ((eq system-type 'ms-dos)
     ;; Quote using double quotes, but escape any existing quotes in