The `NewNamedListOptsRef`, `NewNamedMapOpts` and related `NamedListOpts`,
`NamedMapOpts`, and `NamedOption` interface were added in [moby@677a6b3],
which added support for a `daemon.json` configuration file. That change
required a way to correlate command-line flags with their corresponding
fields in the `daemon.json` to detect conflicting options. At the time,
the CLI and daemon were produced from the same code, and shared packages
for command-line options, but when the CLI was moved to a separate
repository, these options were inherited.
[moby@677a6b3]: 677a6b3506
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
6f0c66c152