While the dateAgo code internally doesn't seem to care about the argument

(unless its not "withal"), its better to fix the spelling here anyways.

src/IDF/templates/idf/source/svn/tree.html

@@ -45,7 +45,7 @@
       <td class="fileicon"><img src="{media '/idf/img/'~$file.type~'.png'}" alt="{$file.type}" /></td>
 
       <td><a href="{$url}">{$file.file}</a></td>
-      <td><span class="smaller">{$file.date|dateago:"wihtout"}</span></td> 
+      <td><span class="smaller">{$file.date|dateago:"without"}</span></td> 
       <td>{$file.rev}</td>
       <td{if $file.type != 'blob'} colspan="2"{/if}><span class="smaller">{$file.author|strip_tags|trim}{trans ':'} {issuetext $file.log, $request, true, false}</span></td>
       {if $file.type == 'blob'}