fix typo (#1103)

deprecated.go

@@ -15,7 +15,7 @@ import (
 func (c *Context) BindWith(obj interface{}, b binding.Binding) error {
 	log.Println(`BindWith(\"interface{}, binding.Binding\") error is going to
 	be deprecated, please check issue #662 and either use MustBindWith() if you
-	want HTTP 400 to be automatically returned if any error occur, of use
+	want HTTP 400 to be automatically returned if any error occur, or use
 	ShouldBindWith() if you need to manage the error.`)
 	return c.MustBindWith(obj, b)
 }