use a more reliable way to find what are the new changesets on pull/unbundle The number of csets and the hooks where wrong (negative number of csets) when we unbundled a bundle which contains csets we already had. Remove unused variables.

#!/bin/sh

unset HGUSER
EMAIL="My Name <myname@example.com>"
export EMAIL

hg init test
cd test
touch asdf
hg add asdf
hg commit -d '1000000 0' -m commit-1
hg tip