[PATCH 3/3 for mainline] docs: fix emacs indenting howto filenameexpansion

[Randy Dunlap]

From: Dan Carpenter <error27@xxxxxxxxx>
Subject: fix emacs indenting howto filename expansion

I don't think emacs understands tilde expansion, so use
"expand-file-name" to do that.

Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
---

---
 Documentation/CodingStyle |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- linux-next-20090126.orig/Documentation/CodingStyle
+++ linux-next-20090126/Documentation/CodingStyle
@@ -498,7 +498,8 @@ values.  To do the latter, you can stick
             (let ((filename (buffer-file-name)))
               ;; Enable kernel mode for the appropriate files
               (when (and filename
-                         (string-match "~/src/linux-trees" filename))
+                         (string-match (expand-file-name "~/src/linux-trees")
+                                       filename))
                 (setq indent-tabs-mode t)
                 (c-set-style "linux-tabs-only")))))
 
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