Fix a minor comments

A minor mismatch in lib/neutron since now unstack.sh invokes
three functions and also start_neutron_agents() is called before
create_neutron_initial_network().

Change-Id: Ibbe68501cce4c062a9ac610cbc44188dc9bab6c8
diff --git a/lib/neutron b/lib/neutron
index ca9b16c..d05dcc8 100644
--- a/lib/neutron
+++ b/lib/neutron
@@ -20,13 +20,15 @@
 # - create_neutron_cache_dir
 # - create_nova_conf_neutron
 # - start_neutron_service_and_check
+# - start_neutron_agents
 # - create_neutron_initial_network
 # - setup_neutron_debug
-# - start_neutron_agents
 #
 # ``unstack.sh`` calls the entry points in this order:
 #
 # - stop_neutron
+# - stop_neutron_third_party
+# - cleanup_neutron
 
 # Functions in lib/neutron are classified into the following categories:
 #