Only use fmt.Sprint() when necessary

cmd/frontend/issues.go

@@ -61,7 +61,7 @@ func PublishLatestIssue(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFun
 
 		article := &b.Article{
 			Title:         title,
-			EncURL:        fmt.Sprint(c.Domain, "/image/serve/", imgFileName),
+			EncURL:        c.Domain + "/image/serve/" + imgFileName,
 			EncLength:     int(imgInfo.Size()),
 			EncType:       mime.TypeByExtension(filepath.Ext(imgAbsName)),
 			Published:     true,