Fixed comments header label on time log details

git-svn-id: http://redmine.rubyforge.org/svn/trunk@488 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/timelog/details.rhtml

@@ -16,7 +16,7 @@
 <%= sort_header_tag('user_id', :caption => l(:label_member)) %>
 <%= sort_header_tag('activity_id', :caption => l(:label_activity)) %>
 <%= sort_header_tag('issue_id', :caption => l(:label_issue)) %>
-<th><%= l(:label_comments) %></th>
+<th><%= l(:field_comments) %></th>
 <%= sort_header_tag('hours', :caption => l(:field_hours)) %>
 <th></th>
 </thead>