Separate debug CLI arg parsing from the underlying action
function. Fixes a number of subtle ordering dependencies, and will
allow us to add a binary API to control the feature at some point in
the future.
Type: refactor
Ticket: VPP-1770
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: Id0dbeda06dad20e756c941c691e2088ce3c50ec7
(cherry picked from commit b97641c79f4aaf0069268c550f263167ddea2b34)
