Do not render truncated links in markdown (#32980) (#32983)

Backport #32980 by wxiaoguang

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

modules/util/string.go

@@ -3,7 +3,10 @@
 
 package util
 
-import "unsafe"
+import (
+	"strings"
+	"unsafe"
+)
 
 func isSnakeCaseUpper(c byte) bool {
 	return 'A' <= c && c <= 'Z'
@@ -95,3 +98,15 @@ func UnsafeBytesToString(b []byte) string {
 func UnsafeStringToBytes(s string) []byte {
 	return unsafe.Slice(unsafe.StringData(s), len(s))
 }
+
+// SplitTrimSpace splits the string at given separator and trims leading and trailing space
+func SplitTrimSpace(input, sep string) []string {
+	input = strings.TrimSpace(input)
+	var stringList []string
+	for _, s := range strings.Split(input, sep) {
+		if s = strings.TrimSpace(s); s != "" {
+			stringList = append(stringList, s)
+		}
+	}
+	return stringList
+}