--- xfce4-session/xfsm-shutdown-helper/main.c.orig	2020-04-04 15:22:12.157655892 +0200
+++ xfce4-session/xfsm-shutdown-helper/main.c	2020-04-04 15:22:12.157655892 +0200
@@ -68,7 +68,7 @@
   gboolean result;
   gchar **argv;
   gchar **envp;
-  GError *err;
+  GError *err = NULL;
   gint status;
   gint argc;
 
@@ -100,6 +100,7 @@
 
   if (!result)
     {
+      puts (err->message);  
       g_error_free (err);
       return FALSE;
     }