[gcc/devel/rust/master] Add missing copyright header to lexer header

[gcc/devel/rust/master] Add missing copyright header to lexer header

[Thomas Schwinge]

https://gcc.gnu.org/g:864df7901cfb2581b226939bec85d75c2f301aa3

commit 864df7901cfb2581b226939bec85d75c2f301aa3
Author: Philip Herron <philip.herron@embecosm.com>
Date:   Wed Feb 16 17:53:33 2022 +0000

    Add missing copyright header to lexer header

Diff:
---
 gcc/rust/lex/rust-lex.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/gcc/rust/lex/rust-lex.h b/gcc/rust/lex/rust-lex.h
index 4b2feae53f7..0ae07fe2cd1 100644
--- a/gcc/rust/lex/rust-lex.h
+++ b/gcc/rust/lex/rust-lex.h
@@ -1,3 +1,21 @@
+// Copyright (C) 2020-2022 Free Software Foundation, Inc.
+
+// This file is part of GCC.
+
+// GCC 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, or (at your option) any later
+// version.
+
+// GCC 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 GCC; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
 #ifndef RUST_LEX_H
 #define RUST_LEX_H
 
@@ -198,6 +216,7 @@ private:
   // Token stream queue.
   buffered_queue<std::shared_ptr<Token>, TokenSource> token_queue;
 };
+
 } // namespace Rust
 
 #endif