[gcc r12-6213] c++: add emacs c++-mode marker

[Jason Merrill]

https://gcc.gnu.org/g:71c5b8bac3182991989372c49ade50ca8581589b

commit r12-6213-g71c5b8bac3182991989372c49ade50ca8581589b
Author: Jason Merrill <jason@redhat.com>
Date:   Mon Jan 3 16:49:24 2022 -0500

    c++: add emacs c++-mode marker
    
    gcc/cp/ChangeLog:
    
            * init.c: Include -*- C++ -*- on first line.

Diff:
---
 gcc/cp/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/cp/init.c b/gcc/cp/init.c
index ff7858773a2..3f56ca4bf5e 100644
--- a/gcc/cp/init.c
+++ b/gcc/cp/init.c
@@ -1,4 +1,4 @@
-/* Handle initialization things in C++.
+/* Handle initialization things in -*- C++ -*-
    Copyright (C) 1987-2022 Free Software Foundation, Inc.
    Contributed by Michael Tiemann (tiemann@cygnus.com)