Remove the trailing new line in .Code

Fixes #9572

common/text/transform.go

@@ -14,6 +14,7 @@
 package text
 
 import (
+	"strings"
 	"sync"
 	"unicode"
 
@@ -45,3 +46,18 @@ func RemoveAccentsString(s string) string {
 	accentTransformerPool.Put(t)
 	return s
 }
+
+// Chomp removes trailing newline characters from s.
+func Chomp(s string) string {
+	return strings.TrimRightFunc(s, func(r rune) bool {
+		return r == '\n' || r == '\r'
+	})
+}
+
+// Puts adds a trailing \n none found.
+func Puts(s string) string {
+	if s == "" || s[len(s)-1] == '\n' {
+		return s
+	}
+	return s + "\n"
+}