This seems like it was a bug before the recent change to remove
OpenStruct from `Homebrew::CLI::Args` but it was failing silently
before. Now we pass the args to the `Cask::Info.info` method so
that when they eventually reach the `Utils::Analytics.output_analytics`
method they are present as expected.
Example error fragment:
```console
$ set -e HOMEBREW_NO_ANALYTICS
$ brew info iterm2 --cask --verbose
==> iterm2: 3.5.10 (auto_updates)
https://iterm2.com/
Installed
/usr/local/Caskroom/iterm2/3.5.4 (91.7MB)
From: https://github.com/Homebrew/homebrew-cask/blob/HEAD/Casks/i/iterm2.rb
==> Name
iTerm2
==> Description
Terminal emulator as alternative to Apple's Terminal app
==> Artifacts
iTerm.app (App)
Error: undefined method `analytics?' for an instance of Homebrew::CLI::Args
/usr/local/Homebrew/Library/Homebrew/utils/analytics.rb:248:in `output_analytics'
/usr/local/Homebrew/Library/Homebrew/utils/analytics.rb:342:in `cask_output'
/usr/local/Homebrew/Library/Homebrew/cask/info.rb:39:in `info'
```
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