tree 0ba65f04831d3873733ffc75f3bac117cf67e5a2
parent 7a7ee9c80d854ff197e3f522f60ff7d2b0151a7b
author Milton Miller <miltonm@us.ibm.com> 1466024543 -0500
committer Milton Miller <miltonm@us.ibm.com> 1466895492 -0500

initfs: update: add --help message

Now that update is intended for use at runtime and not just by
the init and shutdown scripts, add a short help message listing
the options so people don't have to understand how to read shell.

Signed-off-by: Milton Miller <miltonm@us.ibm.com>