improve comment

RalfJung · RalfJung · commit e44d38e05113 · 2019-06-30T16:45:41.000+02:00
diff --git a/tests/run-pass/sync.rs b/tests/run-pass/sync.rs
@@ -8,8 +8,7 @@ fn main() {
     drop(m.lock());
     drop(m);
 
-    // We don't provide RwLock on Windows
-    #[cfg(not(target_os = "windows"))]
+    #[cfg(not(target_os = "windows"))] // TODO: implement RwLock on Windows
     {
         let rw = sync::RwLock::new(0);
         drop(rw.read());

Original file line number	Diff line number	Diff line change
`@@ -8,8 +8,7 @@ fn main() {`
`8`	`8`	`drop(m.lock());`
`9`	`9`	`drop(m);`
`10`	`10`
`11`		`- // We don't provide RwLock on Windows`
`12`		`- #[cfg(not(target_os = "windows"))]`
	`11`	`+ #[cfg(not(target_os = "windows"))] // TODO: implement RwLock on Windows`
`13`	`12`	`{`
`14`	`13`	`let rw = sync::RwLock::new(0);`
`15`	`14`	`drop(rw.read());`