If you run "bitbake-layers help commandname" it now provides some useful
help text.
(Bitbake rev: 1548edcd18a78bab74cde39167169f11ba3c4d58)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>