Fixed 0003493: Missing string $s_bug_deleted in german (and some other) translation

M core/lang_api.php

• Earlier implementations of Mantis used to default the missing string from a certain language to their English values. This was removed by mistake during cleanup.

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@2281 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9