[COMMITTED] stdio-common: Correct 'sscanf' test feature wrapper description

[Maciej W. Rozycki]

Fix a typo in the description, making the wrapper correctly refer to 
'sscanf' rather than 'scanf' being tested.
---
 stdio-common/tst-scanf-format-ss.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

glibc-tst-scanf-format-all-ss-typo.diff
Index: glibc/stdio-common/tst-scanf-format-ss.h
===================================================================
--- glibc.orig/stdio-common/tst-scanf-format-ss.h
+++ glibc/stdio-common/tst-scanf-format-ss.h
@@ -1,4 +1,4 @@
-/* Test feature wrapper for formatted 'scanf' input.
+/* Test feature wrapper for formatted 'sscanf' input.
    Copyright (C) 2025 Free Software Foundation, Inc.
    This file is part of the GNU C Library.