needless_late_init message could be easier to read

[rbtcollins]

Description

Currently it reports the source line of the let; then the replacement code, but the actual original init is not shown.
e.g.

warning: unneeded late initalization
  --> src\cli\job.rs:82:9
   |
82 |         let mut info: JOBOBJECT_EXTENDED_LIMIT_INFORMATION;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(clippy::needless_late_init)]` on by default
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_late_init
help: declare `info` here
   |
83 |         let mut info: JOBOBJECT_EXTENDED_LIMIT_INFORMATION = mem::zeroed();
   |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

could be instead
warning: unneeded late initalization
--> src\cli\job.rs:82:9
|
82 | let mut info: JOBOBJECT_EXTENDED_LIMIT_INFORMATION;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ created here
83 | info = mem::zeroed();
^^^^^^^^^^^^^^^^^^^^ initialised here
|
= note: #[warn(clippy::needless_late_init)] on by default
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_late_init
help: declare info here
|
83 | let mut info: JOBOBJECT_EXTENDED_LIMIT_INFORMATION = mem::zeroed();
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Version

rustc 1.60.0-beta.3 (e5effbd0b 2022-03-07)
binary: rustc
commit-hash: e5effbd0b34c9ede216e21d3f60dcbad0b863676
commit-date: 2022-03-07
host: x86_64-pc-windows-msvc
release: 1.60.0-beta.3
LLVM version: 14.0.0

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