this makes the flags match rclone nomenclature
fixes test-uplinkng to use the temporary config dir
instead of the machine default, and clean up some.
bumps clingy so that the command errors when an unknown
command is specified.
also fixes some printfs in share to use clingy stdout.
it still does some external actions that should be
passed through a ulext.External for mocking, but
that's ok for now.
Change-Id: Icc231e7e26393541c312396fec907b640b97718e
4426470173