Remove trailing whitespace.

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

library/HTMLPurifier/Token/Comment.php

@@ -8,7 +8,7 @@ class HTMLPurifier_Token_Comment extends HTMLPurifier_Token
     public $data; /**< Character data within comment. */
     /**
      * Transparent constructor.
-     * 
+     *
      * @param $data String comment data.
      */
     public function __construct($data, $line = null, $col = null) {

library/HTMLPurifier/Token/Empty.php

@@ -5,5 +5,5 @@
  */
 class HTMLPurifier_Token_Empty extends HTMLPurifier_Token_Tag
 {
-    
+
 }

library/HTMLPurifier/Token/End.php

@@ -2,7 +2,7 @@
 
 /**
  * Concrete end token class.
- * 
+ *
  * @warning This class accepts attributes even though end tags cannot. This
  * is for optimization reasons, as under normal circumstances, the Lexers
  * do not pass attributes.

library/HTMLPurifier/Token/Start.php

@@ -5,5 +5,5 @@
  */
 class HTMLPurifier_Token_Start extends HTMLPurifier_Token_Tag
 {
-    
+
 }

library/HTMLPurifier/Token/Tag.php

@@ -7,29 +7,29 @@ class HTMLPurifier_Token_Tag extends HTMLPurifier_Token
 {
     /**
      * Static bool marker that indicates the class is a tag.
-     * 
+     *
      * This allows us to check objects with <tt>!empty($obj->is_tag)</tt>
      * without having to use a function call <tt>is_a()</tt>.
      */
     public $is_tag = true;
-    
+
     /**
      * The lower-case name of the tag, like 'a', 'b' or 'blockquote'.
-     * 
+     *
      * @note Strictly speaking, XML tags are case sensitive, so we shouldn't
      * be lower-casing them, but these tokens cater to HTML tags, which are
      * insensitive.
      */
     public $name;
-    
+
     /**
      * Associative array of the tag's attributes.
      */
     public $attr = array();
-    
+
     /**
      * Non-overloaded constructor, which lower-cases passed tag name.
-     * 
+     *
      * @param $name String name.
      * @param $attr Associative array of attributes.
      */

library/HTMLPurifier/Token/Text.php

@@ -2,7 +2,7 @@
 
 /**
  * Concrete text token class.
- * 
+ *
  * Text tokens comprise of regular parsed character data (PCDATA) and raw
  * character data (from the CDATA sections). Internally, their
  * data is parsed with all entities expanded. Surprisingly, the text token
@@ -11,14 +11,14 @@
  */
 class HTMLPurifier_Token_Text extends HTMLPurifier_Token
 {
-    
+
     public $name = '#PCDATA'; /**< PCDATA tag name compatible with DTD. */
     public $data; /**< Parsed character data of text. */
     public $is_whitespace; /**< Bool indicating if node is whitespace. */
-    
+
     /**
      * Constructor, accepts data and determines if it is whitespace.
-     * 
+     *
      * @param $data String parsed character data.
      */
     public function __construct($data, $line = null, $col = null) {
@@ -27,5 +27,5 @@ class HTMLPurifier_Token_Text extends HTMLPurifier_Token
         $this->line = $line;
         $this->col  = $col;
     }
-    
+
 }