Style and docs

ethcore/src/spec/spec.rs

@@ -66,7 +66,7 @@ pub struct Spec {
 	pub name: String,
 	/// What engine are we using for this?
 	pub engine: Arc<Engine>,
-	/// The fork identifier for this chain. Only needed to distinguish two chains sharing the same genesis.
+	/// Name of the subdir inside the main data dir to use for chain data and settings.
 	pub data_dir: String,
 
 	/// Known nodes on the network in enode format.

parity/upgrade.rs

@@ -130,7 +130,6 @@ pub fn upgrade(db_path: Option<&str>) -> Result<usize, Error> {
 	})
 }
 
-
 fn file_exists(path: &Path) -> bool {
 	match fs::metadata(&path) {
 		Err(ref e) if e.kind() == io::ErrorKind::NotFound => false,