fix: comment string zero bytes filtering

util.go

@@ -76,6 +76,12 @@ func appendComment(b []byte, name string) []byte {
 	if name == "" {
 		return b
 	}
+	name = strings.Map(func(r rune) rune {
+		if r == '\x00' {
+			return -1
+		}
+		return r
+	}, name)
 	name = strings.ReplaceAll(name, `/*`, `/\*`)
 	name = strings.ReplaceAll(name, `*/`, `*\/`)
 	return append(b, fmt.Sprintf("/* %s */ ", name)...)

util_test.go

@@ -38,4 +38,12 @@ func Test_appendComment(t *testing.T) {
 		s := appendComment(res, c)
 		require.Equal(t, "/* /\\* comment *\\/ */ ", string(s))
 	})
+
+	t.Run("zero bytes", func(t *testing.T) {
+		var res []byte
+		c := string([]byte{'*', 0, 0, 0, 0, 0, '/'})
+
+		s := appendComment(res, c)
+		require.Equal(t, "/* *\\/ */ ", string(s))
+	})
 }