diff --git a/kernel/util/sort.go b/kernel/util/sort.go
index 170598bf8..19a91401c 100644
--- a/kernel/util/sort.go
+++ b/kernel/util/sort.go
@@ -39,13 +39,13 @@ func PinYinCompare(str1, str2 string) bool {
 	return true
 }
 
-// UTF82GBK : transform UTF8 rune into GBK byte array
+// UTF82GBK transform UTF8 rune into GBK byte array.
 func UTF82GBK(src string) ([]byte, error) {
 	GB18030 := simplifiedchinese.All[0]
 	return io.ReadAll(transform.NewReader(bytes.NewReader([]byte(src)), GB18030.NewEncoder()))
 }
 
-// GBK2UTF8 : transform  GBK byte array into UTF8 string
+// GBK2UTF8 transform GBK byte array into UTF8 string.
 func GBK2UTF8(src []byte) (string, error) {
 	GB18030 := simplifiedchinese.All[0]
 	bytes, err := io.ReadAll(transform.NewReader(bytes.NewReader(src), GB18030.NewDecoder()))