Use directory-files-no-dot-files-regexp wherever possible

Suggested by Paul Eggert.

* lisp/files.el (directory-files-no-dot-files-regexp):
Clarify semantics and purpose.
* lisp/dired.el (dired-re-no-dot):
Define as obsolete alias of directory-files-no-dot-files-regexp.
(dired-delete-file):
* lisp/gnus/gnus-util.el (gnus-delete-directory):
* lisp/net/ange-ftp.el (ange-ftp-delete-directory):
* lisp/obsolete/vc-arch.el (vc-arch-trim-revlib):
* lisp/org/ob-core.el (org-babel-remove-temporary-directory):
* lisp/vc/vc-rcs.el (vc-rcs-unregister):
Use directory-files-no-dot-files-regexp.

1 files changed, 1 insertions, 2 deletions

diff --git a/lisp/org/ob-core.el b/lisp/org/ob-core.el
index debc27cfbff..fe9af1ce602 100644
--- a/lisp/org/ob-core.el
+++ b/lisp/org/ob-core.el
@@ -3053,9 +3053,8 @@ of `org-babel-temporary-directory'."
                   (if (eq t (car (file-attributes file)))
                       (delete-directory file)
                     (delete-file file)))
-                ;; We do not want to delete "." and "..".
                 (directory-files org-babel-temporary-directory 'full
-                                 (rx (or (not ".") "..."))))
+                                 directory-files-no-dot-files-regexp))
           (delete-directory org-babel-temporary-directory))
       (error
        (message "Failed to remove temporary Org-babel directory %s"