Add file-local-name

* doc/lispref/files.texi (Magic File Names): Add `file-local-name'.
(Unique File Names): Use it.

* etc/NEWS: Mention `file-local-name'.

* lisp/files.el (file-local-name): New defun.
(file-expand-wildcards):
* lisp/eshell/em-tramp.el (eshell/su, eshell/sudo):
* lisp/eshell/esh-ext.el (eshell-remote-command):
* lisp/eshell/esh-proc.el (eshell-gather-process-output):
* lisp/org/ob-core.el (org-babel-local-file-name):
* lisp/progmodes/gud.el (gud-common-init, gud-format-command):
* lisp/progmodes/python.el (python-shell-send-file):
* lisp/shell.el (shell):
* lisp/vc/ediff-diff.el (ediff-same-file-contents):
* lisp/vc/vc-git.el (vc-git-checkin): Use it.

1 files changed, 4 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 21cda7c6b0a..619d56ba7b7 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -700,6 +700,10 @@ collection).
 can be used for creation of temporary files of remote or mounted directories.
 
 +++
+** The new function 'file-local-name' can be used to specify arguments
+of remote processes.
+
++++
 ** The new error 'file-missing', a subcategory of 'file-error', is now
 signaled instead of 'file-error' if a file operation acts on a file
 that does not exist.