Fix fmt

crates/milli/src/index.rs

@@ -452,8 +452,7 @@ impl Index {
 
     /// Returns the stats of the documents database.
     pub fn documents_stats(&self, rtxn: &RoTxn<'_>) -> heed::Result<Option<DatabaseStats>> {
-        self
-            .main
+        self.main
             .remap_types::<Str, SerdeJson<DatabaseStats>>()
             .get(rtxn, main_key::DOCUMENTS_STATS)
     }