possible fixes for can_comment_on_post(), provide wiki_list on wiki sidebar

Zotlabs/Widget/Wiki_list.php

@@ -6,13 +6,17 @@ class Wiki_list {
 
 	function widget($arr) {
 
+		if(argc() < 3) {
+			return;
+		}
+
 		$channel = channelx_by_n(\App::$profile_uid);
 
 		$wikis = \Zotlabs\Lib\NativeWiki::listwikis($channel,get_observer_hash());
 
 		if($wikis) {
 			return replace_macros(get_markup_template('wikilist_widget.tpl'), array(
-				'$header' => t('Wiki List'),
+				'$header' => t('Wikis'),
 				'$channel' => $channel['channel_address'],
 				'$wikis' => $wikis['wikis']
 			));