chore: fmt modify

core/config/json/json.go

@@ -99,12 +99,12 @@ func (c *JSONConfigContainer) sub(key string) (map[string]interface{}, error) {
 	}
 	value, ok := c.data[key]
 	if !ok {
-		return nil, errors.New(fmt.Sprintf("key is not found: %s", key))
+		return nil, fmt.Errorf("key is not found: %s", key)
 	}
 
 	res, ok := value.(map[string]interface{})
 	if !ok {
-		return nil, errors.New(fmt.Sprintf("the type of value is invalid, key: %s", key))
+		return nil, fmt.Errorf("the type of value is invalid, key: %s", key)
 	}
 	return res, nil
 }

core/config/xml/xml.go

@@ -120,11 +120,11 @@ func (c *ConfigContainer) sub(key string) (map[string]interface{}, error) {
 	}
 	value, ok := c.data[key]
 	if !ok {
-		return nil, errors.New(fmt.Sprintf("the key is not found: %s", key))
+		return nil, fmt.Errorf("the key is not found: %s", key)
 	}
 	res, ok := value.(map[string]interface{})
 	if !ok {
-		return nil, errors.New(fmt.Sprintf("the value of this key is not a structure: %s", key))
+		return nil, fmt.Errorf("the value of this key is not a structure: %s", key)
 	}
 	return res, nil
 }

core/logs/es/es.go

@@ -81,7 +81,7 @@ func (el *esLogger) Init(config string) error {
 	if len(el.Formatter) > 0 {
 		fmtr, ok := logs.GetFormatter(el.Formatter)
 		if !ok {
-			return errors.New(fmt.Sprintf("the formatter with name: %s not found", el.Formatter))
+			return fmt.Errorf("the formatter with name: %s not found", el.Formatter)
 		}
 		el.formatter = fmtr
 	}