Improve config samples

- Add proxy-logging to multinode. We had it since Folsom and people
  still forget it, resulting in missing logs.
- Use correct name, for ease hit with '*' in vi at least.

Admittedly trivial changes, which I meant to hold until Leah's major
doc improvement lands, but I'm tired of keeping stuff like this in
my working repo.

Change-Id: I44f80c51d6d7329a9b696e67fcb8a895db63e497

doc/source/howto_installmultinode.rst

@@ -153,13 +153,16 @@ Configure the Proxy node
         user = swift
 
         [pipeline:main]
-        pipeline = healthcheck cache tempauth proxy-server
+        pipeline = healthcheck proxy-logging cache tempauth proxy-logging proxy-server
 
         [app:proxy-server]
         use = egg:swift#proxy
         allow_account_management = true
         account_autocreate = true
 
+        [filter:proxy-logging]
+        use = egg:swift#proxy_logging
+
         [filter:tempauth]
         use = egg:swift#tempauth
         user_system_root = testpass .admin https://$PROXY_LOCAL_NET_IP:8080/v1/AUTH_system

etc/proxy-server.conf-sample

@@ -162,7 +162,7 @@ user_test_tester3 = testing3
 #
 # You'll need to have as well the keystoneauth middleware enabled
 # and have it in your main pipeline so instead of having tempauth in
-# there you can change it to: authtoken keystone
+# there you can change it to: authtoken keystoneauth
 #
 # [filter:authtoken]
 # paste.filter_factory = keystoneclient.middleware.auth_token:filter_factory