Verbose errors for failed feed fetching

When the allowdebug option is set, the error message generated by the feed parser
will be put in an HTML comment.

darcs-hash:20070618172904-7ad00-729b99d76df499890ded3f43b708196de9ff8cbe.gz

inc/parser/xhtml.php

@@ -818,6 +818,9 @@ class Doku_Renderer_xhtml extends Doku_Renderer {
             $this->doc .= '<li><div class="li">';
             $this->doc .= '<em>'.$lang['rssfailed'].'</em>';
             $this->externallink($url);
+            if($conf['allowdebug']){
+                $this->doc .= '<!--'.hsc($feed->error).'-->';
+            }
             $this->doc .= '</div></li>';
         }
         $this->doc .= '</ul>';