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 da/foo
adding foo
% manifest
200 Script output follows


drwxr-xr-x da
-rw-r--r-- 4 foo


200 Script output follows


-rw-r--r-- 4 foo