Format the compile-test sources with rustfmt 0.8.2

test_suite/tests/compile-fail/borrow/duplicate_variant.rs

@@ -16,7 +16,7 @@ struct Str<'a>(&'a str);
 enum Test<'a> {
     #[serde(borrow)]
     //~^^^ ERROR: duplicate serde attribute `borrow`
-    S(#[serde(borrow)] Str<'a>)
+    S(#[serde(borrow)] Str<'a>),
 }
 
 fn main() {}

test_suite/tests/compile-fail/borrow/struct_variant.rs

@@ -16,7 +16,7 @@ struct Str<'a>(&'a str);
 enum Test<'a> {
     #[serde(borrow)]
     //~^^^ ERROR: #[serde(borrow)] may only be used on newtype variants
-    S { s: Str<'a> }
+    S { s: Str<'a> },
 }
 
 fn main() {}