Usage error messages now go to StdErr

cmd/read.go

@@ -57,6 +57,7 @@ func readProperty(cmd *cobra.Command, args []string) error {
 	}
 
 	if errorReadingStream != nil {
+		cmd.SilenceUsage = true
 		return errorReadingStream
 	}
 	out := cmd.OutOrStdout()

cmd/root.go

@@ -55,7 +55,5 @@ func New() *cobra.Command {
 		createNewCmd(),
 		createMergeCmd(),
 	)
-	rootCmd.SetOutput(os.Stdout)
-
 	return rootCmd
 }