`volume-driver-opt` was too verbose for its own existence and the sanity
of those in the vicinity. The much better, sleeker `volume-opt` replaces
it. 7 bytes and a case of carpal tunnel syndrome are saved!
Signed-off-by: Stephen J Day <stephen.day@docker.com>
Upstream-commit: a40b5820c91640183b40e0668f6802415e6adc14
Component: engine