format with gofumpt (#18184)

* gofumpt -w -l .

* gofumpt -w -l -extra .

* Add linter

* manual fix

* change make fmt

modules/markup/markdown/markdown_test.go

@@ -18,9 +18,11 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-const AppURL = "http://localhost:3000/"
-const Repo = "gogits/gogs"
-const AppSubURL = AppURL + Repo + "/"
+const (
+	AppURL    = "http://localhost:3000/"
+	Repo      = "gogits/gogs"
+	AppSubURL = AppURL + Repo + "/"
+)
 
 // these values should match the Repo const above
 var localMetas = map[string]string{
@@ -120,7 +122,6 @@ func TestRender_Images(t *testing.T) {
 	test(
 		"[!["+title+"]("+url+")]("+href+")",
 		`<p><a href="`+href+`" rel="nofollow"><img src="`+result+`" alt="`+title+`"/></a></p>`)
-
 }
 
 func testAnswers(baseURLContent, baseURLImages string) []string {