Improve the style of breaking long lines into two

[marcinwazny]

Describe the style change

Black treats long lines that can be broken into two differently from those that can be broken into three or more. It seems to me that, unfortunately, in the first case it does it quite poorly.

Examples in the current Black style

match "some very long string to match".split():
    case ["string", "some", "very", "long", "to", "match"] | [
        "very",
        "some",
        "long",
        "string",
        "to",
        "match",
    ]:
        pass

Desired style

match "some very long string to match".split():
    case (
        ["string", "some", "very", "long", "to", "match"]
        | ["very", "some", "long", "string", "to", "match"]
    ):
        pass

Additional context

This is how black currently formats long lines, which can be broken into three or more.

match "some very long string to match".split():
    case (
        ["string", "some", "very", "long", "to", "match"]
        | ["very", "some", "long", "string", "to", "match"]
        | ["some", "very", " long", "string", "to", "match"]
    ):
        pass