A default line length of 100 characters? Wow, they're moving with times. None of that 80 character archaicness 👍

The leading comma style was a lesser-evil workaround for the lack of trailing commas in the Nix language. Now that the language has this feature, there is no reason to keep it that way anymore.

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Amazing! Finally that terrible style is out.

About time they decide to format nixpkgs. That is such a mess at the moment and gives reviewers the ability to nitpick and force their own style - of course every reviewer has a different style. Only took them ~25 years, but they're getting there 👏

Good job on getting this through.

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