Improve integer file mode options docstrings

* lisp/eshell/esh-util.el (eshell-private-file-modes)
(eshell-private-directory-modes):
* lisp/gnus/mail-source.el (mail-source-default-file-modes):
* lisp/printing.el (pr-file-modes):
* lisp/gnus/mm-decode.el (mm-attachment-file-modes):
* lisp/gnus/nnmail.el (nnmail-default-file-modes):
* lisp/recentf.el (recentf-save-file-modes):
* lisp/vc/ediff-init.el (ediff-temp-file-mode):
* lisp/vc/emerge.el (emerge-temp-file-mode): Better document the fact
that these are integer and not octal values.

* lisp/epg.el (epg--start):
* lisp/emacs-lisp/package.el (package-import-keyring): Use octal values
to make the code more self-documenting.

1 files changed, 4 insertions, 2 deletions

diff --git a/lisp/eshell/esh-util.el b/lisp/eshell/esh-util.el
index 189be5fe57c..bc2e04746b1 100644
--- a/lisp/eshell/esh-util.el
+++ b/lisp/eshell/esh-util.el
@@ -64,11 +64,13 @@ Setting this to nil is offered as an aid to debugging only."
   :type 'boolean)
 
 (defcustom eshell-private-file-modes #o600 ; umask 177
-  "The file-modes value to use for creating \"private\" files."
+  "The file-modes value to use for creating \"private\" files.
+This is decimal, not octal.  The default is 384 (0600 in octal)."
   :type 'integer)
 
 (defcustom eshell-private-directory-modes #o700 ; umask 077
-  "The file-modes value to use for creating \"private\" directories."
+  "The file-modes value to use for creating \"private\" directories.
+This is decimal, not octal.  The default is 448 (0700 in octal)."
   :type 'integer)
 
 (defcustom eshell-tar-regexp