[PHP-DOC] Fix in strip_tags

[Adam Kazimierczak]

Hello again,

In strip_tags there is a note that says:
---
This parameter should not contain whitespace. strip_tags sees a tag as a 
case-insensitive string between /</ and the first whitespace or />/. It 
means that /strip_tags("<br/>", "<br>")/ returns an empty string.
---
The given code, obviously, will not return an empty string. Probably 
someone forgot to add an example whitespace to the code. I updated the 
second parameter in the example from <br> to <br >.

Cheers,
Adam
Index: en/reference/strings/functions/strip-tags.xml
===================================================================
--- en/reference/strings/functions/strip-tags.xml	(revision 330498)
+++ en/reference/strings/functions/strip-tags.xml	(working copy)
@@ -51,7 +51,7 @@
         <function>strip_tags</function> sees a tag as a case-insensitive
         string between <literal>&lt;</literal> and the first whitespace or
         <literal>&gt;</literal>. It means that
-        <literal>strip_tags("&lt;br/&gt;", "&lt;br&gt;")</literal> returns an
+        <literal>strip_tags("&lt;br/&gt;", "&lt;br &gt;")</literal> returns an
         empty string.
        </para>
       </note>