only linkify openids in userlink

Can't use htmllink in userlink due to it being called from recentchanges
in cases where there is no configured url. It seems easist, at least for now,
to not linkify user names in this case. I don't think I've ever clicked on such
a link anyway.

Might revisit this later.

IkiWiki.pm

@@ -90,7 +90,7 @@ sub defaultconfig () { #{{{
 	adminuser => undef,
 	adminemail => undef,
 	plugin => [qw{mdwn inline htmlscrubber passwordauth openid signinedit
-	              lockedit conditional}],
+	              lockedit conditional recentchanges}],
 	libdir => undef,
 	timeformat => '%c',
 	locale => undef,
@@ -631,9 +631,7 @@ sub userlink ($) { #{{{
 		return "<a href=\"$user\">".escapeHTML($display)."</a>";
 	}
 	else {
-		return htmllink("", "", escapeHTML(
-			length $config{userdir} ? $config{userdir}."/".$user : $user
-		), noimageinline => 1);
+		return $user;
 	}
 } #}}}