.rubocop: tweak rules.

[MikeMcQuaid]

Adjust the rules based on the current codebase. Remove various enable, disables and default values that are unnecessary. Add more comments explaining why. Make minor changes needed to enable a few more rules.

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same change?
• 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.
• Have you successfully run brew style with your changes locally?
• Have you successfully run brew tests with your changes locally?

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[MikeMcQuaid]

With these changes there's only a single complaint in homebrew/core which will be fixed in Homebrew/homebrew-core#31709

[DomT4]

Is the second # a typo?

(Also favor? 🇺🇸 👀, heh)

[MikeMcQuaid]

Yes, fixing (both 😉)

[DomT4]

There's a few of both here but I won't point them all out to avoid you wanting to prod me with a stick, justifiably 😄

[DomT4]

Wouldn't object to knocking this down a bit, FWIW. I have a file locally of all the core formulae that have overly long lines, which I've started working through. I think 150 is doable fairly quickly.

[MikeMcQuaid]

Wouldn't object to knocking this down a bit, FWIW. I have a file locally of all the core formulae that have overly long lines, which I've started working through. I think 150 is doable fairly quickly.

@DomT4 I'm game to take it down the whole way at some point but yeh: any help before that'd be welcome 👍

[DomT4]

Aye, I think periodically reducing the number is a solid way to go. After Homebrew/homebrew-core#31712 is folded in (it'll fail CI, but for previously known reasons) we'll be down to 94 non-exempt lines over 150 characters in core.