Restore the empty line after the license (#6088)

substrate/client/finality-grandpa/src/authorities.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 //! Utilities for dealing with authorities, authority sets, and handoffs.
 
 use fork_tree::ForkTree;

substrate/client/finality-grandpa/src/communication/mod.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 //! Communication streams for the polite-grandpa networking protocol.
 //!
 //! GRANDPA nodes communicate over a gossip network, where messages are not sent to

substrate/client/finality-grandpa/src/environment.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 use std::collections::BTreeMap;
 use std::iter::FromIterator;
 use std::pin::Pin;

substrate/client/finality-grandpa/src/finality_proof.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 //! GRANDPA block finality proof generation and check.
 //!
 //! Finality of block B is proved by providing:

substrate/client/finality-grandpa/src/import.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 use std::{sync::Arc, collections::HashMap};
 
 use log::{debug, trace};

substrate/client/finality-grandpa/src/justification.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 use std::collections::{HashMap, HashSet};
 use std::sync::Arc;
 

substrate/client/finality-grandpa/src/lib.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 //! Integration of the GRANDPA finality gadget into substrate.
 //!
 //! This crate is unstable and the API and usage may change.

substrate/client/finality-grandpa/src/observer.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 use std::pin::Pin;
 use std::sync::Arc;
 use std::task::{Context, Poll};

substrate/client/finality-grandpa/src/tests.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 //! Tests and test helpers for GRANDPA.
 
 use super::*;

substrate/client/finality-grandpa/src/until_imported.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 //! Helper stream for waiting until one or more blocks are imported before
 //! passing through inner items. This is done in a generic way to support
 //! many different kinds of items.

substrate/client/finality-grandpa/src/voting_rule.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 //! Handling custom voting rules for GRANDPA.
 //!
 //! This exposes the `VotingRule` trait used to implement arbitrary voting