fix whitespace (#6062)

substrate/bin/node/inspect/src/lib.rs

@@ -1,18 +1,18 @@
 // This file is part of Substrate.
-// 
+//
 // Copyright (C) 2020 Parity Technologies (UK) Ltd.
 // SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
-// 
+//
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or 
+// the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
-// 
+//
 // This program is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 // GNU General Public License for more details.
-// 
+//
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.