format with gofumpt (#18184)

* gofumpt -w -l .

* gofumpt -w -l -extra .

* Add linter

* manual fix

* change make fmt

modules/public/public_test.go

@@ -11,7 +11,7 @@ import (
 )
 
 func TestParseAcceptEncoding(t *testing.T) {
-	var kases = []struct {
+	kases := []struct {
 		Header   string
 		Expected map[string]bool
 	}{