bug#1369: string-width problem in buff-menu.el

[Toru TSUNEYOSHI]

hello.

I found a problem in buff-menu.el.
(I use GNU Emacs 22.3.1 (i386-msvc-nt5.0.2195).)

`list-buffers' function can't deal with buffer name in multilingual environment.
it can't truncate buffer name properly.

example:
========================================================================
CRM Buffer                Size  Mode              File
.%  あいうえおかきくけこさしすせそ        271  Dired by name ~/temp/あいうえおかきくけこさしすせそ/
 %  あいう                    247  Dired by name  ~/temp/あいう/
 %  *GNU Emacs*            669  Fundamental
    *scratch*              191  Lisp Interaction
  * *Messages*             691  Fundamental
========================================================================

i made a patch for this problem. please check it. if ok, please apply.

buff-menu.el.diff
Description: Binary data