emacs-29 updated (627e7e0243 -> 4a8ff671b0)

[Paul Eggert]

eggert pushed a change to branch emacs-29.

      from  627e7e0243 Improve documentation of 'file-exists-p'
       new  8a9579ca29 Use make-directory handlers uniformly
       new  bef1edc9ca make-directory now returns t if dir already exists
       new  44c83b239d Fix copy-directory bug when dest dir exists
       new  4a8ff671b0 Don’t assume make-directory handler returns nil


Summary of changes:
 doc/lispref/files.texi   |  5 +--
 etc/NEWS                 |  9 ++++++
 lisp/files.el            | 82 +++++++++++++++++++++++++++---------------------
 lisp/gnus/nnmaildir.el   |  2 +-
 lisp/ido.el              |  2 +-
 lisp/net/tramp-smb.el    |  3 +-
 src/fileio.c             |  5 ---
 test/lisp/files-tests.el | 26 +++++++--------
 8 files changed, 74 insertions(+), 60 deletions(-)