Switch CLI argument parsing to clap
v3
#562
Merged
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As discussed in #298, switches command-line argument processing from
gumdrop
toclap
v3.0.0-beta.4.This release of
clap
, despite still being beta, has moved many of the warnings around the stability of the API. They are also cutting scope of an initial release upstream, which are good signs that they will get to a stable release soon.This PR builds upon @rsdy's initial work in #479.