refactor: form to json

Author: CarlosRoGuerra

.vscode/launch.json

@@ -74,16 +74,13 @@ func (c *UserCreate) Run(ctx *cmd.Context, client *cmd.Client) error {
 	if err != nil {
 		return err
 	}
-
 	if response != nil {
 		if response.StatusCode == http.StatusNotFound ||
 			response.StatusCode == http.StatusMethodNotAllowed {
 			return errors.New("User creation is disabled.")
 		}
 	}
-
 	err = cmd.StreamJSONResponse(ctx.Stdout, response)
-
 	if err != nil {
 		return err
 	}

tsuru/client/auth.go

@@ -618,7 +618,7 @@ func (c *RoleDefaultRemove) Run(context *cmd.Context, client *cmd.Client) error
 	}
 	encodedParams := params.Encode()
 	if encodedParams == "" {
-		return fmt.Errorf("You must choose which event to remove default roles.")
+		return fmt.Errorf("You must choose which event to remove default roles")
 	}
 	addr, err := cmd.GetURL(fmt.Sprintf("/role/default?%s", encodedParams))
 	if err != nil {