test-serve: let run-tests.py kill the daemons
If the daemons die while the tests are still running, we'll get additional
"killed!" messages, making the test fail.
adding dir/bar
adding foo
dir/bar
foo
adding dir/bar_2
adding foo_2
dir/bar_2
foo_2
adding a
adding c
adding b
adding d
removing a
removing c
recording removal of a as rename to b (100% similar)