Auto merge of #106296 - matthiaskrgr:rollup-ukdbqwx, r=matthiaskrgr

Rollup of 4 pull requests

Successful merges:

 - #99244 (doc: clearer and more correct Iterator::scan)
 - #103707 (Replace libstd, libcore, liballoc terminology in docs)
 - #104182 (`IN6ADDR_ANY_INIT` and `IN6ADDR_LOOPBACK_INIT` documentation.)
 - #106273 (rustdoc: remove redundant CSS `.source .content { overflow: visible }`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

library/alloc/src/alloc.rs

@@ -23,7 +23,7 @@ extern "Rust" {
     // These are the magic symbols to call the global allocator.  rustc generates
     // them to call `__rg_alloc` etc. if there is a `#[global_allocator]` attribute
     // (the code expanding that attribute macro generates those functions), or to call
-    // the default implementations in libstd (`__rdl_alloc` etc. in `library/std/src/alloc.rs`)
+    // the default implementations in std (`__rdl_alloc` etc. in `library/std/src/alloc.rs`)
     // otherwise.
     // The rustc fork of LLVM 14 and earlier also special-cases these function names to be able to optimize them
     // like `malloc`, `realloc`, and `free`, respectively.

library/alloc/src/lib.rs

@@ -3,7 +3,7 @@
 //! This library provides smart pointers and collections for managing
 //! heap-allocated values.
 //!
-//! This library, like libcore, normally doesn’t need to be used directly
+//! This library, like core, normally doesn’t need to be used directly
 //! since its contents are re-exported in the [`std` crate](../std/index.html).
 //! Crates that use the `#![no_std]` attribute however will typically
 //! not depend on `std`, so they’d use this crate instead.
@@ -75,7 +75,7 @@
 ))]
 #![no_std]
 #![needs_allocator]
-// To run liballoc tests without x.py without ending up with two copies of liballoc, Miri needs to be
+// To run alloc tests without x.py without ending up with two copies of alloc, Miri needs to be
 // able to "empty" this crate. See <https://github.com/rust-lang/miri-test-libstd/issues/4>.
 // rustc itself never sets the feature, so this line has no affect there.
 #![cfg(any(not(feature = "miri-test-libstd"), test, doctest))]