fix -boot strict regressed in commit 6ef4716 Commit 6ef4716 cleaned up parsing of -boot option argument, but accidentally dropped parameter strict. It should have been updated exactly like parameter menu. Do that. Signed-off-by: Amos Kong <akong@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>