fetch_file_contents: fix CURL option setting

functions.php

@@ -371,7 +371,7 @@
 			curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
 			curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 			curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
-			curl_setopt($fp, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
+			curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
 
 			if ($login && $pass)
 				curl_setopt($ch, CURLOPT_USERPWD, "$login:$pass");