fix a small typo

layer3domain_attr.go

@@ -52,7 +52,7 @@ func layer3DomainGetAttr(c *Context, req Request, res *Response) error {
 		return nil
 	}
 	if name == "" {
-		res.AddMessage(LevelError, "empt name was provided")
+		res.AddMessage(LevelError, "empty name was provided")
 		return nil
 	}