[gcc r16-3719] doc: Adjust -Wextra description for -Wunterminated-string-initialization

[Jonathan Wakely]

https://gcc.gnu.org/g:53452be13b2f87584cda5c2f65b8fc4faba6306e

commit r16-3719-g53452be13b2f87584cda5c2f65b8fc4faba6306e
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Sep 9 13:59:41 2025 +0100

    doc: Adjust -Wextra description for -Wunterminated-string-initialization
    
    Say that -Wunterminated-string-initialization is for C and ObjC only
    when it appears in the -Wextra documentation.
    
    gcc/ChangeLog:
    
            * doc/invoke.texi (Warning Options): Note that an option
            enabled by -Wextra is for C and ObjC only.

Diff:
---
 gcc/doc/invoke.texi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 85beda11c5c9..d0c13d4a24e9 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -6690,7 +6690,7 @@ name is still supported, but the newer name is more descriptive.)
 -Wstring-compare
 -Wtype-limits
 -Wuninitialized
--Wunterminated-string-initialization
+-Wunterminated-string-initialization @r{(C/ObjC only)}
 -Wunused-parameter @r{(only with} @option{-Wunused} @r{or} @option{-Wall}@r{)}
 -Wunused-but-set-parameter @r{(only with} @option{-Wunused} @r{or} @option{-Wall}@r{)}}