Matching SocketAddr::as_pathname.

Before this change:

    $ ./configure --codegen-backends=
    [..]
    $ grep -P '^codegen-backends' config.toml
    codegen-backends = ['']

After this change:

    $ ./configure --codegen-backends=
    [..]
    $ grep -P '^codegen-backends' config.toml
    codegen-backends = []

Was accidentally placed on unsigned integers, where it is not relevant.

Implement `MIN`/`MAX` constants for non-zero integers

This adds the associated [`MIN`](https://doc.rust-lang.org/stable/std/primitive.usize.html#associatedconstant.MIN)/[`MAX`](https://doc.rust-lang.org/stable/std/primitive.usize.html#associatedconstant.MAX) constants to `NonZero{U,I}{8,16,32,64,128,size}`, requested in rust-lang#89065.

This reimplements rust-lang#89077 due that PR being stagnant for 4 months. I am fine with closing this in favor of that one if the author revisits it. If so, I'd like to see that PR have the docs link to the `$Int`'s constants.

…_creation, r=dtolnay

Rename unix::net::SocketAddr::from_path to from_pathname and stabilize it

Stabilizes `unix_socket_creation`.

Closes rust-lang#93423
r? `@m-ou-se`

Rename is_{some,ok,err}_with to is_{some,ok,err}_and.

This renames `is_{some,ok,err}_with` to `is_{some,ok,err}_and`. This was discussed on the [tracking issue](rust-lang#93050).

…-Simulacrum

configure: don't serialize empty array elements

Before this change:

    $ ./configure --codegen-backends=
    [..]
    $ grep -P '^codegen-backends' config.toml
    codegen-backends = ['']

After this change:

    $ ./configure --codegen-backends=
    [..]
    $ grep -P '^codegen-backends' config.toml
    codegen-backends = []

… r=yaahc

Improve doc wording for retain on some collections

I found the documentation wording on the various retain methods on many collections to be unusual.
I tried to invert the relation by switching `such that` with `for which` .