added lang string for 'Sidebar'

inc/lang/en/lang.php

@@ -201,6 +201,7 @@ $lang['user_tools']            = 'User Tools';
 $lang['site_tools']            = 'Site Tools';
 $lang['page_tools']            = 'Page Tools';
 $lang['skip_to_content']       = 'skip to content';
+$lang['sidebar']               = 'Sidebar';
 
 $lang['mail_newpage']          = 'page added:';
 $lang['mail_changed']          = 'page changed:';

lib/tpl/dokuwiki/main.php

@@ -38,7 +38,7 @@ $showSidebar = $hasSidebar && ($ACT=='show');
             <?php if($showSidebar): ?>
                 <!-- ********** ASIDE ********** -->
                 <div id="dokuwiki__aside"><div class="pad include group">
-                    <h3 class="toggle"><?php echo hsc(ucfirst($conf['sidebar'])) ?></h3>
+                    <h3 class="toggle"><?php echo $lang['sidebar'] ?></h3>
                     <div class="content">
                         <?php tpl_flush() ?>
                         <?php tpl_includeFile('sidebarheader.html') ?>