[Sab] Problem with the xml declaration

[Sylvaine Jaehn]

Hello,

I'd like to add an xml declaration in my html result file. So I write this 
instruction :

<xsl:output method="html" version="1.0" encoding="ISO-8859-1" 
doctype-public="-//W3C//DTD XHTML 1.0 Strict//E\N" omit-xml-declaration="no" 
/>

But there's no "?" at the end of the instruction in the html file : 

<?xml version="1.0" encoding="ISO-8859-1">

Is this a bug ?
How can it be fixed ?

Thank you.