fix logic error

cmd/radioctl/radioctl.go

@@ -118,10 +118,7 @@ func createMount(args []string) {
 
 	// Check if the mount already exists.
 	client := getClient()
-	oldm, err := client.GetMount(path)
-	if err != nil {
-		log.Fatal(err)
-	}
+	oldm, _ := client.GetMount(path)
 	if oldm != nil {
 		log.Fatal("A mount with that name already exists!")
 	}