Add hash to list of special regular expression characters

Patch provided by Huiren Woo.

git-svn-id: http://svn.php.net/repository/phpdoc/en@346423 c90b9560-bf6c-de11-be94-00142212c4b1

Author: cmb

trunk/reference/pcre/functions/preg-quote.xml

@@ -22,7 +22,7 @@
   </para>
   <para>
    The special regular expression characters are:
-   <literal>. \ + * ? [ ^ ] $ ( ) { } = ! &lt; &gt; | : -</literal>
+   <literal>. \ + * ? [ ^ ] $ ( ) { } = ! &lt; &gt; | : - #</literal>
   </para>
   <para>
    Note that <literal>/</literal> is not a special regular expression character.