Bump the version of rustfmt used in tidy

scottmcm · scottmcm · commit b9b574fdb0bc · 2020-10-13T07:58:22.000-07:00
To pick up rust-lang/rustfmt#4461 So that rustfmt has the parsing fix from rust-lang#76274 ...and do a reformat that it wants.
diff --git a/core/src/iter/adapters/mod.rs b/core/src/iter/adapters/mod.rs
@@ -2381,11 +2381,7 @@ where
         }
 
         let n = self.len();
-        if n == 0 {
-            try { init }
-        } else {
-            self.iter.try_rfold(init, check(n, fold)).into_try()
-        }
+        if n == 0 { try { init } } else { self.iter.try_rfold(init, check(n, fold)).into_try() }
     }
 
     fn rfold<Acc, Fold>(mut self, init: Acc, fold: Fold) -> Acc

Original file line number	Diff line number	Diff line change
`@@ -2381,11 +2381,7 @@ where`
`2381`	`2381`	`}`
`2382`	`2382`
`2383`	`2383`	`let n = self.len();`
`2384`		`- if n == 0 {`
`2385`		`- try { init }`
`2386`		`- } else {`
`2387`		`- self.iter.try_rfold(init, check(n, fold)).into_try()`
`2388`		`- }`
	`2384`	`+ if n == 0 { try { init } } else { self.iter.try_rfold(init, check(n, fold)).into_try() }`
`2389`	`2385`	`}`
`2390`	`2386`
`2391`	`2387`	`fn rfold<Acc, Fold>(mut self, init: Acc, fold: Fold) -> Acc`