Add canonical tag for users list page

qa-include/pages/users.php

@@ -74,6 +74,10 @@
 	else
 		$qa_content['title'] = qa_lang_html('main/no_active_users');
 
+
+	// set the canonical url based on possible pagination
+	$qa_content['canonical'] = qa_path_html(qa_request(), ($start > 0 ? array('start' => $start) : null), qa_opt('site_url'));
+
 	$qa_content['page_links'] = qa_html_page_links(qa_request(), $start, $pagesize, $usercount, qa_opt('pages_prev_next'));
 
 	$qa_content['navigation']['sub'] = qa_users_sub_navigation();