Fix 0003155: Field 'date_added' (for attachments) not correctly printed in print_bug_page.php.

Thanks for ndeboer for the fix.

M print_bug_page.php

• Use UNIX_TIMESTAMP in the query for retrieving the attached file information.

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@2159 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9