format with gofumpt (#18184)

* gofumpt -w -l .

* gofumpt -w -l -extra .

* Add linter

* manual fix

* change make fmt

routers/web/admin/admin.go

@@ -209,7 +209,7 @@ func shadowPassword(provider, cfgItem string) string {
 	case "redis":
 		return shadowPasswordKV(cfgItem, ",")
 	case "mysql":
-		//root:@tcp(localhost:3306)/macaron?charset=utf8
+		// root:@tcp(localhost:3306)/macaron?charset=utf8
 		atIdx := strings.Index(cfgItem, "@")
 		if atIdx > 0 {
 			colonIdx := strings.Index(cfgItem[:atIdx], ":")