fix lint error

Signed-off-by: yxxhero <aiopsclub@163.com>

test/diff-yamls/diff-yamls.go

@@ -137,6 +137,7 @@ type meta struct {
 	namespace  string
 }
 
+// nolint: unparam
 func (res resource) getMeta() (meta, error) {
 	if len(res) == 0 {
 		return meta{}, nil

test/e2e/template/helmfile/tmpl_test.go

@@ -6,8 +6,9 @@ import (
 	"testing"
 	"text/template"
 
-	"github.com/helmfile/helmfile/pkg/tmpl"
 	"github.com/stretchr/testify/require"
+
+	"github.com/helmfile/helmfile/pkg/tmpl"
 )
 
 type tmplTestCase struct {

test/yamldiff/yamldiff.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"io"
 	"os"
-
 	"strings"
 
 	"github.com/jessevdk/go-flags"