Fix automatic_links warnings

Author: GuillaumeGomez

library/core/src/intrinsics.rs

@@ -9,7 +9,7 @@
 //! This includes changes in the stability of the constness.
 //!
 //! In order to make an intrinsic usable at compile-time, one needs to copy the implementation
-//! from https://github.com/rust-lang/miri/blob/master/src/shims/intrinsics.rs to
+//! from <https://github.com/rust-lang/miri/blob/master/src/shims/intrinsics.rs> to
 //! `compiler/rustc_mir/src/interpret/intrinsics.rs` and add a
 //! `#[rustc_const_unstable(feature = "foo", issue = "01234")]` to the intrinsic.
 //!

library/core/src/lib.rs

@@ -283,6 +283,7 @@ pub mod primitive;
     unused_imports,
     unsafe_op_in_unsafe_fn
 )]
+#[cfg_attr(not(bootstrap), allow(automatic_links))]
 // FIXME: This annotation should be moved into rust-lang/stdarch after clashing_extern_declarations is
 // merged. It currently cannot because bootstrap fails as the lint hasn't been defined yet.
 #[allow(clashing_extern_declarations)]

library/core/src/num/dec2flt/mod.rs

@@ -33,7 +33,7 @@
 //!
 //! Primarily, this module and its children implement the algorithms described in:
 //! "How to Read Floating Point Numbers Accurately" by William D. Clinger,
-//! available online: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.45.4152
+//! available online: <http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.45.4152>
 //!
 //! In addition, there are numerous helper functions that are used in the paper but not available
 //! in Rust (or at least in core). Our version is additionally complicated by the need to handle

library/core/src/slice/sort.rs

@@ -1,7 +1,7 @@
 //! Slice sorting
 //!
 //! This module contains a sorting algorithm based on Orson Peters' pattern-defeating quicksort,
-//! published at: https://github.com/orlp/pdqsort
+//! published at: <https://github.com/orlp/pdqsort>
 //!
 //! Unstable sorting is compatible with libcore because it doesn't allocate memory, unlike our
 //! stable sorting implementation.