[newlib-cygwin] Cygwin: dumper: fix up GCC pragma for g++ 11.2

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=3ca80b360c2b294ad781c9c5f76d3b172a61c6dc

commit 3ca80b360c2b294ad781c9c5f76d3b172a61c6dc
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Thu Aug 26 22:15:49 2021 +0200

    Cygwin: dumper: fix up GCC pragma for g++ 11.2
    
    The GCC diagnostic ignored "-Wstringop-overflow" pragma doesn't work
    as expected anymore.  Use the still working expression.
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/utils/dumper.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/winsup/utils/dumper.cc b/winsup/utils/dumper.cc
index bc6c68a53..12124e26a 100644
--- a/winsup/utils/dumper.cc
+++ b/winsup/utils/dumper.cc
@@ -557,7 +557,7 @@ dumper::dump_module (asection * to, process_module * module)
   bfd_putl32 (note_length, header.elf_note_header.descsz);
   bfd_putl32 (NT_WIN32PSTATUS, header.elf_note_header.type);
 #pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wstringop-overflow"
+#pragma GCC diagnostic warning "-Wstringop-overflow=1"
 #pragma GCC diagnostic ignored "-Warray-bounds"
   strncpy (header.elf_note_header.name, "win32module", NOTE_NAME_SIZE);
 #pragma GCC diagnostic pop