cmd/info: avoid waiting indefinitely for analytics unless requested

[carlocab]

• [x] Have you followed the guidelines in our Contributing document?
• [x] Have you checked to ensure there aren't other open Pull Requests for the same change?
• [x] Have you added an explanation of what your changes do and why you'd like us to include them?
• [ ] Have you written new tests for your changes? Here's an example.
• [x] Have you successfully run brew style with your changes locally?
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• [ ] Have you successfully run brew tests with your changes locally?

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On a poor connection, e.g., brew info bat can hang indefinitely trying to fetch analytics data.

Let's bail out early instead unless these analytics were specifically requested with --analytics.