[PATCH v2 03/17] tests/unit/qobject: Replace deprecated sprintf() with g_strdup_printf()

["Philippe Mathieu-Daudé" <philmd@oss.qualcomm.com>]

Replace sprintf() by safer g_strdup_printf() to avoid
when using Apple clang 17.0.0 on macOS ARM64:

  ../tests/unit/test-qobject-output-visitor.c:598:9: warning: 'sprintf' is deprecated [-Wdeprecated-declarations]
  ../tests/unit/test-qobject-input-visitor.c:600:9: warning: 'sprintf' is deprecated [-Wdeprecated-declarations]

Signed-off-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
---
 tests/unit/test-qobject-input-visitor.c  | 4 +---
 tests/unit/test-qobject-output-visitor.c | 3 +--
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/tests/unit/test-qobject-input-visitor.c b/tests/unit/test-qobject-input-visitor.c
index beee11db4e47..d4d2f7f1ee0a 100644
--- a/tests/unit/test-qobject-input-visitor.c
+++ b/tests/unit/test-qobject-input-visitor.c
@@ -595,9 +595,7 @@ static void test_visitor_in_list_struct(TestInputVisitorData *data,
 
     i = 0;
     for (str_list = arrs->string; str_list; str_list = str_list->next) {
-        char expected[32];
-
-        sprintf(expected, "%d", i);
+        g_autofree char *expected = g_strdup_printf("%d", i);
         g_assert_cmpstr(str_list->value, ==, expected);
         i++;
     }
diff --git a/tests/unit/test-qobject-output-visitor.c b/tests/unit/test-qobject-output-visitor.c
index 3c47b28f6638..b240cb326c4e 100644
--- a/tests/unit/test-qobject-output-visitor.c
+++ b/tests/unit/test-qobject-output-visitor.c
@@ -592,10 +592,9 @@ static void test_visitor_out_list_struct(TestOutputVisitorData *data,
     i = 0;
     QLIST_FOREACH_ENTRY(qlist, e) {
         QString *qvalue = qobject_to(QString, qlist_entry_obj(e));
-        char expected[32];
+        g_autofree char *expected = g_strdup_printf("%d", i);
 
         g_assert(qvalue);
-        sprintf(expected, "%d", i);
         g_assert_cmpstr(qstring_get_str(qvalue), ==, expected);
         i++;
     }
-- 
2.55.0