fixup! IE use the latest rendering engine to render the page

The line added in commit e42b2816
is not valid XML.

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/template_erp5_xhtml_style.zpt

@@ -23,7 +23,7 @@ DEPRECATION:
           <tal:block metal:use-macro="global_definitions_macros/header_boilerplate" />
           <meta name="generator" content="ERP5 - Copyright (C) 2001 - 2015. All rights reserved." />
           <meta name="robots" content="index, follow" />
-          <meta http-equiv="X-UA-Compatible" content="IE=edge">
+          <meta http-equiv="X-UA-Compatible" content="IE=edge" />
           <tal:block metal:use-macro="global_definitions_macros/render_css_js" />
           <tal:block metal:define-slot="head"></tal:block>
         </head>