Add TODO comment added by rustc.

ehuss · tbu- · ehuss · commit b03166ec9223 · 2024-08-15T08:08:28.000-07:00
Co-authored-by: Tobias Bucher &lt;tobiasbucher5991@gmail.com&gt;
diff --git a/src/rust-2024/newly-unsafe-functions.md b/src/rust-2024/newly-unsafe-functions.md
@@ -62,6 +62,7 @@ to be:
 
 ```rust
 fn main() {
+    // TODO: Audit that the environment access only happens in single-threaded code.
     unsafe { std::env::set_var("FOO", "123") };
 }
 ```

Original file line number	Diff line number	Diff line change
`@@ -62,6 +62,7 @@ to be:`
`62`	`62`
`63`	`63`	```rust
`64`	`64`	`fn main() {`
	`65`	`+ // TODO: Audit that the environment access only happens in single-threaded code.`
`65`	`66`	`unsafe { std::env::set_var("FOO", "123") };`
`66`	`67`	`}`
`67`	`68`	```