[#9489] linked labels to their elements

Contributed by Romano Licker.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@7679 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/issues/index.html.erb

@@ -26,7 +26,7 @@
             <td><%= render :partial => 'queries/columns', :locals => {:query => @query} %></td>
           </tr>
           <tr>
-            <td><%= l(:field_group_by) %></td>
+            <td><label for='group_by'><%= l(:field_group_by) %></label></td>
             <td><%= select_tag('group_by', options_for_select([[]] + @query.groupable_columns.collect {|c| [c.caption, c.name.to_s]}, @query.group_by)) %></td>
           </tr>
         </table>