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This adds
take_last
, which causes the final option given to be the only one considered. So:Would set opt to two.
opt->count
is still 2. This was also used to implement bool flags (on by default), which allows someone to restore the behavior seen before #38 by setting->take_last(false)
and is a better/more general fix than #38 . This is a partial fix for #39 ; the other part of the fix would be giving the user more power over the failure messages.