* bzrlib/transport/ftp.py: (FtpTransport.__init__): Write a better explanation.
* bzrlib/tests/test_init.py: (InstrumentedTransport): Just make hooks a class attribute. (InstrumentedTransport._get_FTP): Run hook directly in the for loop. (TransportHooks.run_hook, TransportHooks.uninstall_hook): Not needed. The hooks should be cleaned up by the test itself. (TestInit.setUp.cleanup): Resset to default hooks.