refactored for maintainability

internal/handlers/index.go

@@ -3,6 +3,7 @@ package handlers
 import (
 	"net/http"
 
+	"git.haelnorr.com/h/oslstats/internal/throw"
 	"git.haelnorr.com/h/oslstats/internal/view/page"
 
 	"git.haelnorr.com/h/golib/hws"
@@ -14,7 +15,7 @@ func Index(s *hws.Server) http.Handler {
 	return http.HandlerFunc(
 		func(w http.ResponseWriter, r *http.Request) {
 			if r.URL.Path != "/" {
-				throwNotFound(s, w, r, r.URL.Path)
+				throw.NotFound(s, w, r, r.URL.Path)
 			}
 			renderSafely(page.Index(), s, r, w)
 		},