Remove trailing whitespace.

Signed-off-by: Edward Z. Yang <edwardzyang@thewritingpot.com>

tests/HTMLPurifier/HTMLT.php

@@ -3,12 +3,12 @@
 class HTMLPurifier_HTMLT extends HTMLPurifier_Harness
 {
     protected $path;
-    
+
     public function __construct($path) {
         $this->path = $path;
         parent::__construct($path);
     }
-    
+
     public function testHtmlt() {
         $parser = new HTMLPurifier_StringHashParser();
         $hash = $parser->parseFile($this->path); // assume parser normalizes to "\n"