bug#18512: 24.3.93; tramp persistency file: incompatible with old versions? Tramp won't start!

[Glenn Morris]

Stefan Monnier wrote:

>> !       (string-match-p
>> !        (format "/%s/?\\'"
>> !                (regexp-quote
>> !                 (file-name-nondirectory
>> !                  (directory-file-name user-emacs-directory)))) dir)
>>         (string-equal (file-name-as-directory (expand-file-name dir))
>>                       (expand-file-name user-emacs-directory))
>>         (setq warned t)
>
> Why not simply remove the (string-match-p "/[._]emacs\\.d/?\\'" dir) test?

It may have been a pointless attempt to avoid statting the file-system
unless it looked like it was going to be needed. (Does expand-file-name
even do that?)