output fixes

src/store.rs

@@ -20,7 +20,7 @@ impl DescriptorStore {
 			Ok(f) => rmp_serde::from_slice(&f).unwrap(),
 			Err(_e) => HashMap::with_capacity(count),
 		};
-		DescriptorStore { map: map }
+		DescriptorStore { map }
 	}
 
 	/// Returns true iff the store already contains the key