[HackerNews] Fix tag containing comment

[HackerNews] Fix tag containing comment

Author: rakoo

bridges/HackerNewsUserThreadsBridge.php

@@ -40,7 +40,10 @@ public function collectData()
             $item['author'] = $author;
             $item['title'] = $title;
             $item['timestamp'] = $element->find('span[class*="age"]', 0)->find('a', 0)->innertext;
-            $item['content'] = $element->find('span[class*="commtext"]', 0)->innertext;
+            $contentDiv = $element->find('div[class*="commtext"]', 0);
+            if (!empty($contentDiv)) {
+                $item['content'] = $contentDiv->innertext;
+            }
 
             $this->items[] = $item;
         }