[gnome-panel] clock: fix memory leak

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 9ccb9b6bdf145bc4146cab2babb5c8f612a257f2
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Tue May 4 14:19:53 2021 +0300

    clock: fix memory leak

 modules/clock/clock-button.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/modules/clock/clock-button.c b/modules/clock/clock-button.c
index 03cf30cca..21a5ea707 100644
--- a/modules/clock/clock-button.c
+++ b/modules/clock/clock-button.c
@@ -119,7 +119,7 @@ get_clock_width (ClockButton *self)
   gtk_widget_get_preferred_width (label, &width, NULL);
 
   g_object_ref_sink (label);
-  gtk_widget_destroy (label);
+  g_object_unref (label);
 
   return width;
 }