tree a63525f0a8765c1d7f1e83c7e4c27537ee2fe0a0
parent bfb33b53d01b3e3db2e2b52b2bff622367c08804
author Milton Miller <miltonm@us.ibm.com> 1466024543 -0500
committer Milton Miller <miltonm@us.ibm.com> 1467316003 -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>