fix fmt

Signed-off-by: Alex Chi <iskyzh@gmail.com>

mini-lsm/src/compact.rs

@@ -37,7 +37,9 @@ impl LsmStorage {
         let mut iters = Vec::new();
         iters.reserve(tables.len());
         for table in tables.iter() {
-            iters.push(Box::new(SsTableIterator::create_and_seek_to_first(table.clone())?));
+            iters.push(Box::new(SsTableIterator::create_and_seek_to_first(
+                table.clone(),
+            )?));
         }
         let mut iter = MergeIterator::create(iters);