Don't require default-directory to end with a slash

* doc/lispref/files.texi (Magic File Names): Document the change
in unhandled-file-name-directory.

* lisp/url/url-handlers.el
(url-handler-unhandled-file-name-directory): Update accordingly.

* src/buffer.c (default-directory): Update the docsting.

* src/fileio.c (unhandled-file-name-directory): Default to calling
`file-name-as-directory'
(http://lists.gnu.org/archive/html/emacs-devel/2015-10/msg02294.html).

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/lispref/files.texi b/doc/lispref/files.texi
index 65a97a46699..60834338423 100644
--- a/doc/lispref/files.texi
+++ b/doc/lispref/files.texi
@@ -3082,7 +3082,7 @@ making connections when they don't exist.
 
 @defun unhandled-file-name-directory filename
 This function returns the name of a directory that is not magic.  It
-uses the directory part of @var{filename} if that is not magic.  For a
+turns @var{filename} into a directory name if that is not magic.  For a
 magic file name, it invokes the file name handler, which therefore
 decides what value to return.  If @var{filename} is not accessible
 from a local process, then the file name handler should indicate it by