[gcc r16-4935] libstdc++: add missing exports

[Jason Merrill]

https://gcc.gnu.org/g:a06228ca4dddac44bba28c8e9ebd2f7000167c2e

commit r16-4935-ga06228ca4dddac44bba28c8e9ebd2f7000167c2e
Author: Jason Merrill <jason@redhat.com>
Date:   Sat Nov 1 16:16:20 2025 +0300

    libstdc++: add missing exports
    
    These exports didn't get uncommented when the functionality was implemented.
    
    libstdc++-v3/ChangeLog:
    
            * src/c++23/std.cc.in: Uncomment usings for vprint_*_buffered.

Diff:
---
 libstdc++-v3/src/c++23/std.cc.in | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libstdc++-v3/src/c++23/std.cc.in b/libstdc++-v3/src/c++23/std.cc.in
index 28f0e8cb1fb6..11a8d4fb486f 100644
--- a/libstdc++-v3/src/c++23/std.cc.in
+++ b/libstdc++-v3/src/c++23/std.cc.in
@@ -2185,9 +2185,9 @@ export namespace std
   using std::print;
   using std::println;
   using std::vprint_unicode;
-  //FIXME using std::vprint_unicode_buffered;
+  using std::vprint_unicode_buffered;
   using std::vprint_nonunicode;
-  //FIXME using std::vprint_nonunicode_buffered;
+  using std::vprint_nonunicode_buffered;
 }
 #endif