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 --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 85beda11c5c93df8218d20b89729a64793505d92..d0c13d4a24e91aba629916c57bb087972f98a617 100644 (file)
--- 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{)}}