fix: typo so duckduckgo works again (merge pull request #51 from davi…

…dovski/fix_duckduckgo)

Fix typo in duckduckgo

engines/text/duckduckgo.php

@@ -36,7 +36,7 @@ public function parse_results($response) {
                 if ($url == null)
                     continue;
 
-                if (!empty($results)) // filter duplicate results {
+                if (!empty($results)) { // filter duplicate results
                     if (end($results)["url"] == $url->textContent)
                         continue;
                 }