Add a short explination of Subdomain wildcard policy

- changed the Note for wildcard subdomain

Author: JacobTanenbaum

docs/generated/oc_by_example_content.adoc

@@ -1695,6 +1695,10 @@ Expose a replicated application as a service or route
   # Create a route and specify a hostname
   oc expose service nginx --hostname=www.example.com
   
+  # Create a route with wildcard
+  oc expose service nginx --hostname=x.example.com --wildcard=Subdomain
+  This would be equivalent to *.example.com. NOTE: only hosts are matched by the wildcard, subdomains would not be included.
+  
   # Expose a deployment configuration as a service and use the specified port
   oc expose dc ruby-hello-world --port=8080
   

docs/man/man1/oc-expose.1

@@ -229,6 +229,10 @@ There is also the ability to expose a deployment configuration, replication cont
   # Create a route and specify a hostname
   oc expose service nginx \-\-hostname=www.example.com
 
+  # Create a route with wildcard
+  oc expose service nginx \-\-hostname=x.example.com \-\-wildcard=Subdomain
+  This would be equivalent to *.example.com. NOTE: only hosts are matched by the wildcard, subdomains would not be included.
+  
   # Expose a deployment configuration as a service and use the specified port
   oc expose dc ruby\-hello\-world \-\-port=8080
 

docs/man/man1/openshift-cli-expose.1

@@ -229,6 +229,10 @@ There is also the ability to expose a deployment configuration, replication cont
   # Create a route and specify a hostname
   openshift cli expose service nginx \-\-hostname=www.example.com
 
+  # Create a route with wildcard
+  openshift cli expose service nginx \-\-hostname=x.example.com \-\-wildcard=Subdomain
+  This would be equivalent to *.example.com. NOTE: only hosts are matched by the wildcard, subdomains would not be included.
+  
   # Expose a deployment configuration as a service and use the specified port
   openshift cli expose dc ruby\-hello\-world \-\-port=8080
 

pkg/cmd/cli/cmd/expose.go

@@ -33,6 +33,10 @@ var (
 	  # Create a route and specify a hostname
 	  %[1]s expose service nginx --hostname=www.example.com
 
+	  # Create a route with wildcard
+	  %[1]s expose service nginx --hostname=x.example.com --wildcard=Subdomain
+	  This would be equivalent to *.example.com. NOTE: only hosts are matched by the wildcard, subdomains would not be included.
+
 	  # Expose a deployment configuration as a service and use the specified port
 	  %[1]s expose dc ruby-hello-world --port=8080