Emacs: use delete-region instead of kill-* functions. This patch eliminates `kill-line' which taints kill-ring, and `kill-entire-line' which is specific for XEmacs.

#!/bin/sh

hg init
python -c 'print "confuse str.splitlines\nembedded\rnewline"' > a
hg ci -Ama -d '1 0'
echo clean diff >> a
hg ci -mb -d '2 0'
hg diff -r0 -r1