6b2e32019e
This change introduces long options for zdb. It updates the usage message as well to include the long options. Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Manoj Joseph <manoj.joseph@delphix.com> Closes #12818