format with gofumpt (#18184)

* gofumpt -w -l .

* gofumpt -w -l -extra .

* Add linter

* manual fix

* change make fmt

modules/log/conn_test.go

@@ -135,7 +135,7 @@ func TestConnLoggerFailConnect(t *testing.T) {
 
 	date := time.Date(2019, time.January, 13, 22, 3, 30, 15, location)
 
-	//dateString := date.UTC().Format("2006/01/02 15:04:05")
+	// dateString := date.UTC().Format("2006/01/02 15:04:05")
 
 	event := Event{
 		level:    INFO,
@@ -224,7 +224,6 @@ func TestConnLoggerClose(t *testing.T) {
 		err := logger.LogEvent(&event)
 		assert.NoError(t, err)
 		logger.Close()
-
 	}()
 	wg.Wait()
 	logger.Flush()