This makes it possible to name files starting with a hyphen in the work
directory. Without this change rm will fail due to an unexpected option
being passed.
(From OE-Core rev: 5f1a63e0de4921ef970114a16d0827fcddcdaa0e)
Signed-off-by: William A. Kennington III <wak@google.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>