remove the trailing HR from the help tables

chrome/content/vimperator/help.js

@@ -33,6 +33,7 @@ Vimperator.prototype.help = function(section, easter) //{{{
         vimperator.echoerr("E478: Don't panic!");
         return;
     }
+
     if ((arguments[3] && arguments[3].inTab))// || !window.content.document.open)
         openURLsInNewTab("", true);
     else
@@ -46,6 +47,7 @@ Vimperator.prototype.help = function(section, easter) //{{{
     function makeHelpString(commands, beg, end, func)
     {
         var ret = "";
+        var separator = '<tr class="separator"><td colspan="3"><hr/></td></tr>\n';
         for (var command in commands)
         {
             // the usage information for the command
@@ -103,11 +105,12 @@ Vimperator.prototype.help = function(section, easter) //{{{
             ret += '</td></tr>';
 
             // add more space between entries
-            // FIXME: if (i < commands.length-1)
-                ret += '<tr class="separator"><td colspan="3"><hr/></td></tr>\n';
+            ret += separator;
         }
+        ret = ret.replace(new RegExp(separator + '$'), ''); // FIXME: far too tasty!
         return ret;
     }
+
     function makeOptionsHelpString(command)
     {
         var ret = "";