bug#19773: 23.2; kill-rectangle documentation

[vincent douzal]

Hello,

The documentation string for kill-rectangle erroneously speaks about the
kill ring.  Rectangles of text are not copied to the kill ring, but in
the variable kill-rectangle, which besides is not a ring.

This can be puzzle new users.

Regards

Vincent Douzal


In GNU Emacs 23.2.1 (i486-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2013-01-09 on murphy, modified by Debian

Windowing system distributor `The X.Org Foundation', version 11.0.10707000
configured using `configure  '--build' 'i486-linux-gnu' '--build' 
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' 
'--libexecdir=/usr/lib' '--localstatedir=/var/lib' '--infodir=/usr/share/info' 
'--mandir=/usr/share/man' '--with-pop=yes' 
'--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.2/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.2/leim'
 '--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 
'build_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -g -O2' 'LDFLAGS=-g' 'CPPFLAGS=''