status: add -c (clean) and -A (all files) options also add new localrepo.status what is more uniform than localrepo.changes. localrepo.changes is deprecated and will go away soon.

#!/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