tweeper.php: make error about missing stylesheet more explicit

diff --git a/tweeper.php b/tweeper.php
index 81f5f85..178176d 100644 (file)
--- a/tweeper.php
+++ b/tweeper.php
@@ -161,7 +161,7 @@ class Tweeper {
   private function load_stylesheet($host) {
     $stylesheet = "file://" . __DIR__ . "/rss_converter_" . $host . ".xsl";
     if (FALSE === file_exists($stylesheet)) {
-      trigger_error("Conversion to RSS not supported: $host", E_USER_ERROR);
+      trigger_error("Conversion to RSS not supported for $host ($stylesheet not found)", E_USER_ERROR);
       return NULL;
     }