FS#1821: Added a permalink to the diff output

inc/html.php

@@ -991,6 +991,12 @@ function html_diff($text='',$intro=true){
 
     $tdf = new TableDiffFormatter();
     if($intro) print p_locale_xhtml('diff');
+
+    if (!$text) {
+        ptln('<div class="level1"><p>');
+        ptln('  <a class="wikilink1" href="'.wl($ID, 'do=diff&rev2[]='.$l_rev.'&rev2[]='.$r_rev).'">'.$lang['difflink'].'</a>');
+        ptln('</p></div>');
+    }
     ?>
     <table class="diff">
     <tr>

inc/lang/en/lang.php

@@ -163,6 +163,7 @@ $lang['current']    = 'current';
 $lang['yours']      = 'Your Version';
 $lang['diff']       = 'Show differences to current revisions';
 $lang['diff2']      = 'Show differences between selected revisions';
+$lang['difflink']   = 'Link to this diff output';
 $lang['line']       = 'Line';
 $lang['breadcrumb'] = 'Trace';
 $lang['youarehere'] = 'You are here';