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
hg init rep
cd rep
mkdir dir
touch foo dir/bar
hg -v addremove
hg -v commit -m "add 1" -d "1000000 0"
cd dir/
touch ../foo_2 bar_2
hg -v addremove
hg -v commit -m "add 2" -d "1000000 0"