[gtk/fix-memleaks] tests: Plug a memory leak

[Matthias Clasen <matthiasc src gnome org>]

commit d24a0e96062ed42d3f3fe57d7b8ed0a7d9fed972
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Mar 27 21:13:25 2021 -0400

    tests: Plug a memory leak

 testsuite/gtk/bitset.c | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/testsuite/gtk/bitset.c b/testsuite/gtk/bitset.c
index 110dc1401e..2c01912317 100644
--- a/testsuite/gtk/bitset.c
+++ b/testsuite/gtk/bitset.c
@@ -553,6 +553,9 @@ test_splice_overflow (void)
 
   compare = gtk_bitset_new_range (16, 1);
   g_assert_true (gtk_bitset_equals (set, compare));
+
+  gtk_bitset_unref (compare);
+  gtk_bitset_unref (set);
 }
 
 int