Cosmetic changes in render

render/xml.go

@@ -9,7 +9,9 @@ type XML struct {
 	Data interface{}
 }
 
+const xmlContentType = "application/xml; charset=utf-8"
+
 func (r XML) Write(w http.ResponseWriter) error {
-	w.Header().Set("Content-Type", "application/xml; charset=utf-8")
+	w.Header().Set("Content-Type", xmlContentType)
 	return xml.NewEncoder(w).Encode(r.Data)
 }