Description of problem:

mokutil just exits with an error message when you exeute it in a system without EFI vars support, instead of showing the help

Version-Release number of selected component (if applicable):

mokutil-0.3.0-12.el8

How reproducible:

Execute mokutil in a system without UEFI or EFI vars support

Actual results:

Error shown:

[root@hp-z230-02 ~]# mokutil --help
EFI variables are not supported on this system

Expected results:

Show the command help