Re: grub-mkrescue problems in argp_parse

[Vladimir 'φ-coder/phcoder' Serbinenko]

> Used in old mkisofs.
> "Do not add trailing dot to ISO file names without dot."
> An alias is available: -omit-period
> 
Or user can use --d
>> In future we can make a rule to add only options starting with --.
> 
> This will not really create clarity because i already added
> options with "--" to -as mkisofs. Mainly to get out of
> the way of future mkisofs extensions. The current option
> set of xorriso -as mkisofs is strictly irregular.
> 
In retrospect we should have put a --grub-<grub_option> there. But OTOH
--grub- makes options that longer. For rarely used options it's not a
problem though. Can we have --grub* space?

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