Introduce a new service generator that leaves service port unnamed

docs/user-guide/kubectl/kubectl_expose.md

@@ -56,7 +56,7 @@ $ kubectl expose rc streamer --port=4100 --protocol=udp --name=video-stream
       --container-port="": Synonym for --target-port
       --create-external-load-balancer=false: If true, create an external load balancer for this service (trumped by --type). Implementation is cloud provider dependent. Default is 'false'.
       --dry-run=false: If true, only print the object that would be sent, without creating it.
-      --generator="service/v1": The name of the API generator to use.  Default is 'service/v1'.
+      --generator="service/v2": The name of the API generator to use. There are 2 generators: 'service/v1' and 'service/v2'. The only difference between them is that service port in v1 is named 'default', while it is left unnamed in v2. Default is 'service/v2'.
   -h, --help=false: help for expose
   -l, --labels="": Labels to apply to the service created by this call.
       --name="": The name for the newly created object.
@@ -105,7 +105,7 @@ $ kubectl expose rc streamer --port=4100 --protocol=udp --name=video-stream
 ### SEE ALSO
 * [kubectl](kubectl.md)	 - kubectl controls the Kubernetes cluster manager
 
-###### Auto generated by spf13/cobra at 2015-07-14 00:11:42.957615868 +0000 UTC
+###### Auto generated by spf13/cobra at 2015-07-16 21:22:36.08263026 +0000 UTC
 
 
 <!-- BEGIN MUNGE: GENERATED_ANALYTICS -->