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From: Glenn Morris <rgm@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Odd code in tramp-handle-write-region
Date: Fri, 16 May 2008 14:28:15 -0400
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Line 4188 of tramp.el in tramp-handle-write-region (the second line
below) doesn't appear to do anything.

(let (file-name-handler-alist)
  (file-writable-p (file-name-directory localname))
  (or (file-directory-p localname)
      (file-writable-p localname))))