No default value, but prompt says there is one: customize-variable

[Drew Adams]

emacs -q

Put cursor on this text in some buffer: Buffer-menu-mode-width.

M-x customize-variable

The prompt says that the default is Buffer-menu-mode-width, but
completing-read is called with a nil DEF value, and you cannot pull
Buffer-menu-mode-width into the minibuffer with M-n.


In GNU Emacs 22.0.50.1 (i386-mingw-nt5.1.2600)
 of 2005-06-26 on NONIQPC
X server distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc
(3.3) --cflags -I../../jpeg-6b-3/include -I../../libpng-1.2.8/include -I../.
./tiff-3.6.1-2/include -I../../xpm-nox-4.2.0/include -I../../zlib-1.2.2/incl
ude'