Remove trailing whitespace.

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

library/HTMLPurifier/AttrDef/HTML/MultiLength.php

@@ -2,39 +2,39 @@
 
 /**
  * Validates a MultiLength as defined by the HTML spec.
- * 
+ *
  * A multilength is either a integer (pixel count), a percentage, or
  * a relative number.
  */
 class HTMLPurifier_AttrDef_HTML_MultiLength extends HTMLPurifier_AttrDef_HTML_Length
 {
-    
+
     public function validate($string, $config, $context) {
-        
+
         $string = trim($string);
         if ($string === '') return false;
-        
+
         $parent_result = parent::validate($string, $config, $context);
         if ($parent_result !== false) return $parent_result;
-        
+
         $length = strlen($string);
         $last_char = $string[$length - 1];
-        
+
         if ($last_char !== '*') return false;
-        
+
         $int = substr($string, 0, $length - 1);
-        
+
         if ($int == '') return '*';
         if (!is_numeric($int)) return false;
-        
+
         $int = (int) $int;
-        
+
         if ($int < 0) return false;
         if ($int == 0) return '0';
         if ($int == 1) return '*';
         return ((string) $int) . '*';
-        
+
     }
-    
+
 }