my apache/php/ubuntu build seems to add a trailing / to document_path - this breaks the redirect code. For the sake
of it, trim any trailing /'s

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@5049 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9