message: Fix even more URLs
diff: //! Handling of enum discriminants
  //!
  -//! Adapted from https://github.com/rust-lang/rust/blob/d760df5aea483aae041c9a241e7acacf48f75035/src/librustc_codegen_ssa/mir/place.rs
  +//! Adapted from <https://github.com/rust-lang/rust/blob/d760df5aea483aae041c9a241e7acacf48f75035/src/librustc_codegen_ssa/mir/place.rs>
  use rustc_target::abi::{Int, TagEncoding, Variants};
  