minor fix (#7828)

substrate/client/api/src/cht.rs

@@ -22,7 +22,7 @@
 //! One is generated for every `SIZE` blocks, allowing us to discard those blocks in
 //! favor of the trie root. When the "ancient" blocks need to be accessed, we simply
 //! request an inclusion proof of a specific block number against the trie with the
-//! root has. A correct proof implies that the claimed block is identical to the one
+//! root hash. A correct proof implies that the claimed block is identical to the one
 //! we discarded.
 
 use hash_db;

substrate/client/consensus/aura/src/lib.rs

@@ -256,7 +256,7 @@ where
 	) -> Option<Self::Claim> {
 		let expected_author = slot_author::<P>(slot_number, epoch_data);
 		expected_author.and_then(|p| {
-			 if SyncCryptoStore::has_keys(
+			if SyncCryptoStore::has_keys(
 				 &*self.keystore,
 				 &[(p.to_raw_vec(), sp_application_crypto::key_types::AURA)],
 			) {

substrate/client/service/src/client/client.rs

@@ -1306,7 +1306,7 @@ impl<B, E, Block, RA> BlockBuilderProvider<B, Block, Self> for Client<B, E, Bloc
 	}
 }
 
-impl<B, E, Block, RA>  ExecutorProvider<Block> for Client<B, E, Block, RA> where
+impl<B, E, Block, RA> ExecutorProvider<Block> for Client<B, E, Block, RA> where
 	B: backend::Backend<Block>,
 	E: CallExecutor<Block>,
 	Block: BlockT,