55857e9 sssctl: Generic help for cache-upgrade and config-check

2 files Authored by mzidek 7 years ago, Committed by jhrozek 7 years ago,
    sssctl: Generic help for cache-upgrade and config-check
    
    sssctl COMMAND --help should print at least
    generic help, even if the command does not
    accept any command specific options.
    
    Resolves:
    https://fedorahosted.org/sssd/ticket/3086
    
    Reviewed-by: Pavel Březina <pbrezina@redhat.com>