bug#12378: 24.2.50; `ibuffer' is broken for buffer names with newlines

[Drew Adams]

emacs -q
 
C-x 4 b a C-q RET b RET
 
M-x ibuffer
 
Ibuffer correctly shows the buffer named "a^Jb" (but perhaps it should
show the newline as "^J" or as "\n").  But some of the behavior is
bugged.
 
Use `d' and `DEL' (backspace) a couple of times.  Use `d' and `x'.  Try
clicking mouse-1 after the `a' in the buffer name.
 
The display and the functioning of Ibuffer is messed up whenever a
buffer name contains a newline character.
 
Note that `list-buffers' and `buffer-menu' do not have any such problem.
They appear to work OK with such buffer names.
 

In GNU Emacs 24.2.50.1 (i386-mingw-nt5.1.2600)
 of 2012-09-02 on MARVIN
Bzr revision: 109861 eggert@cs.ucla.edu-20120902171035-7mzihil3xd6bjfiy
Windowing system distributor `Microsoft Corp.', version 5.1.2600
Configured using:
 `configure --with-gcc (4.6) --no-opt --enable-checking --cflags
 -ID:/devel/emacs/libs/libXpm-3.5.8/include
 -ID:/devel/emacs/libs/libXpm-3.5.8/src
 -ID:/devel/emacs/libs/libpng-dev_1.4.3-1/include
 -ID:/devel/emacs/libs/zlib-dev_1.2.5-2/include
 -ID:/devel/emacs/libs/giflib-4.1.4-1/include
 -ID:/devel/emacs/libs/jpeg-6b-4/include
 -ID:/devel/emacs/libs/tiff-3.8.2-1/include
 -ID:/devel/emacs/libs/gnutls-3.0.9/include
 -ID:/devel/emacs/libs/libiconv-1.13.1-1-dev/include
 -ID:/devel/emacs/libs/libxml2-2.7.8/include/libxml2'