[krb5-auth-dialog] applet: Use g_autoptr()

[Guido Günther <guidog src gnome org>]

commit 7a96c49947b884a5c5891e4896452dacf57bdbeb
Author: Guido Günther <agx sigxcpu org>
Date:   Thu Oct 13 14:05:54 2022 +0200

    applet: Use g_autoptr()
    
    Now easily possible G_DECLARE_FINAL_TYPE defines the cleanup for us.

 src/ka-applet.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
---
diff --git a/src/ka-applet.c b/src/ka-applet.c
index b6bd05e..ae2693f 100644
--- a/src/ka-applet.c
+++ b/src/ka-applet.c
@@ -829,8 +829,7 @@ ka_applet_create (void)
 int
 main (int argc, char *argv[])
 {
-    KaApplet *applet;
-    int ret = 0;
+    g_autoptr(KaApplet) applet = NULL;
 
     textdomain (PACKAGE);
     bind_textdomain_codeset (PACKAGE, "UTF-8");
@@ -845,9 +844,7 @@ main (int argc, char *argv[])
         return 1;
 
     setup_signal_handlers(applet);
-    ret = g_application_run (G_APPLICATION(applet), argc, argv);
-    g_object_unref (applet);
-    return ret;
+    return g_application_run (G_APPLICATION(applet), argc, argv);
 }
 
 /*