Replace `.` code standards with new standards favoring readability. I've shifted the Overton window. (#64940)
Replace `.` code standards with new standards favoring readability. I've shifted the Overton window. (#64940)

* Replace `.` code standards with new standards favoring readability, I've shifted the Overton window

* Grammar fix

* Add some other common cases I see

* Remove unclear example of `return .`

* Clarify that you don't need `return .` for most cases of `. = ..()`
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