Rollup merge of #120200 - noritada:fix/broken-error-message-link, r=dtolnay

Correct the anchor of an URL in an error message

Following error message from rustc points to a URL, but its anchor does not exist.
The destination seems to be https://doc.rust-lang.org/cargo/reference/build-scripts.html#rustc-link-lib.
This PR makes that correction.

      = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)

Author: matthiaskrgr