Comment 56 for bug 105457

It seems to be a dash bug, partly fixed by:
http://git.kernel.org/?p=utils/dash/dash.git;a=commit;h=3800d4934391b144fd261a7957aea72ced7d47ea

And this bug should be fixed, it's still present in Hardy, and Hardy support should stop April 21, 2011, not in 2010.