Update migration script.

tests/fixtures/v1/complete.4.sh

@@ -3,10 +3,11 @@
 curl -L http://127.0.0.1:4001/v1/keys/message -d value="Hello world"
 curl -L http://127.0.0.1:4001/v1/keys/message -d value="Hello etcd"
 curl -L http://127.0.0.1:4001/v1/keys/message -X DELETE
-curl -L http://127.0.0.1:4001/v1/keys/foo -d value=bar -d ttl=5
+curl -L http://127.0.0.1:4001/v1/keys/message2 -d value="Hola"
+curl -L http://127.0.0.1:4001/v1/keys/expiring -d value=bar -d ttl=5
 curl -L http://127.0.0.1:4001/v1/keys/foo -d value=one
 curl -L http://127.0.0.1:4001/v1/keys/foo -d prevValue=two -d value=three
 curl -L http://127.0.0.1:4001/v1/keys/foo -d prevValue=one -d value=two
 curl -L http://127.0.0.1:4001/v1/keys/bar -d prevValue= -d value=four
 curl -L http://127.0.0.1:4001/v1/keys/bar -d prevValue= -d value=five
-curl -X DELETE http://127.0.0.1:4001/v1/keys/_etcd/machines
+curl -X DELETE http://127.0.0.1:7001/remove/node2