Update list-buffers documentation

[Markus Rost]

I suggest to update  (Info-goto-node "(emacs)List Buffers")

        * buffers.texi (List Buffers): Adjust to new format of *Buffer
        List*.

===Buffer *vc-diff*=========================================
*** buffers.texi.~1.22.~        Tue Feb  4 09:53:26 2003
--- buffers.texi        Thu Jul  3 16:13:40 2003
***************
*** 146,168 ****
  file.  The buffers are listed in the order that they were current; the
  buffers that were current most recently come first.
  
!   @samp{*} at the beginning of a line indicates the buffer is ``modified.''
  If several buffers are modified, it may be time to save some with @kbd{C-x s}
  (@pxref{Saving}).  @samp{%} indicates a read-only buffer.  @samp{.} marks the
  current buffer.  Here is an example of a buffer list:@refill
  
  @smallexample
!  MR Buffer         Size  Mode           File
!  -- ------         ----  ----           ----
! .*  emacs.tex      383402 Texinfo       /u2/emacs/man/emacs.tex
!     *Help*         1287  Fundamental
!     files.el       23076 Emacs-Lisp     /u2/emacs/lisp/files.el
!   % RMAIL          64042 RMAIL          /u/rms/RMAIL
!  *% man            747   Dired          /u2/emacs/man/
!     net.emacs      343885 Fundamental   /u/rms/net.emacs
!     fileio.c       27691 C              /u2/emacs/src/fileio.c
!     NEWS           67340 Text           /u2/emacs/etc/NEWS
!     *scratch*    0     Lisp Interaction
  @end smallexample
  
  @noindent
--- 146,168 ----
  file.  The buffers are listed in the order that they were current; the
  buffers that were current most recently come first.
  
!   @samp{*} in the first field of a line indicates the buffer is ``modified.''
  If several buffers are modified, it may be time to save some with @kbd{C-x s}
  (@pxref{Saving}).  @samp{%} indicates a read-only buffer.  @samp{.} marks the
  current buffer.  Here is an example of a buffer list:@refill
  
  @smallexample
! CRM Buffer                Size  Mode             File
! . * *mail*                  42  Mail
!     search.c             86055  C                 ~/cvs/emacs/src/search.c
!  %  src                  20959  Dired by name     ~/cvs/emacs/src/
!   * .emacs                3294  Emacs-Lisp        ~/.emacs
!  %  ~                     7677  Dired by name     ~/
!  %  HELLO                 1607  Fundamental       ~/cvs/emacs/etc/HELLO
!  %  NEWS                481184  Outline           ~/cvs/emacs/etc/NEWS
!     *scratch*              191  Lisp Interaction
!  %  cvs                   1272  Dired by name     ~/cvs/
!   * *Messages*            1554  Fundamental
  @end smallexample
  
  @noindent
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