Fixed 3532 test case

Author: vallentin

tests/target/issue-3532.rs

@@ -1,6 +1,7 @@
 fn foo(a: T) {
  match a {
  1 => {}
- 0 => {} // _ => panic!("doesn't format!"),
+ 0 => {}
+ // _ => panic!("doesn't format!"),
  }
 }