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!"),
     }
 }