Change in flashrom[master]: make args for -r/-w/-v non-positional and optional

[Arthur Heymans (Code Review)]

Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/23022 )

Change subject: make args for -r/-w/-v non-positional and optional
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Patch Set 6:
> I'm missing a check for spurious arguments. I have no idea how to
> implement it (straightforward) together with the non-positional
> file
> names. Currently, if you have a typo in your command line (e.g.
> forget
> a dash before an option), things may just be ignored...
>
> So why make it non-positional?

Is there a way to change the argument amount on -r/-w/-v since without this change, using -i region:file one always needs a filename next to -r/-w/-v which sort of defeats the purpose of the previous patch.