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Produce free arguments when constructing Config#740

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frankmcsherry wants to merge 1 commit intoTimelyDataflow:masterfrom
frankmcsherry:comm_free
Open

Produce free arguments when constructing Config#740
frankmcsherry wants to merge 1 commit intoTimelyDataflow:masterfrom
frankmcsherry:comm_free

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The getopts::Matches struct tracks which input arguments are "free" as in not consumed. This can be handy for programs that do more than establish communication infrastructure. One can work around this by rebuilding the same stack of operations, but helping out here avoids e.g. needing to import the getopts crate and remember how to do everything.

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