update `kubectl expose` output to UsageError

This patch updates `kubectl expose` output (with no resources provided) to a UsageError so that the `kubectl expose -h` suggestion is displayed.

update `kubectl expose` output to UsageError
8faff9f9 · juanvallejo · 184e91bb · 8faff9f9
Unverified Commit 8faff9f9 authored Sep 07, 2016 by juanvallejo
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expose.go pkg/kubectl/cmd/expose.go +1 -1

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--- a/pkg/kubectl/cmd/expose.go
+++ b/pkg/kubectl/cmd/expose.go
@@ -147,7 +147,7 @@ func RunExpose(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []str
 		Do()
 	err = r.Err()
 	if err != nil {
-		return err
+		return cmdutil.UsageError(cmd, err.Error())
 	}

 	// Get the generator, setup and validate all required parameters