[gnome-applets] netspeed: fix -Wincompatible-pointer-types warning

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 5f7c7959f31b68b0fe2ced65102e61b505701e35
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Fri Apr 3 21:55:52 2020 +0300

    netspeed: fix -Wincompatible-pointer-types warning

 gnome-applets/netspeed/netspeed-applet.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/gnome-applets/netspeed/netspeed-applet.c b/gnome-applets/netspeed/netspeed-applet.c
index b80543a05..04545147c 100644
--- a/gnome-applets/netspeed/netspeed-applet.c
+++ b/gnome-applets/netspeed/netspeed-applet.c
@@ -830,12 +830,12 @@ details_cb (GSimpleAction *action,
        }
        
        title = g_strdup_printf(_("Device Details for %s"), applet->devinfo.name);
-       applet->details = GTK_DIALOG(gtk_dialog_new_with_buttons(title, 
-               NULL, 
-                GTK_DIALOG_DESTROY_WITH_PARENT,
-               GTK_STOCK_CLOSE, GTK_RESPONSE_ACCEPT, 
-               GTK_STOCK_HELP, GTK_RESPONSE_HELP,
-               NULL));
+       applet->details = gtk_dialog_new_with_buttons (title,
+                                                      NULL,
+                                                      GTK_DIALOG_DESTROY_WITH_PARENT,
+                                                      GTK_STOCK_CLOSE, GTK_RESPONSE_ACCEPT,
+                                                      GTK_STOCK_HELP, GTK_RESPONSE_HELP,
+                                                      NULL);
        g_free(title);
 
        gtk_dialog_set_default_response(GTK_DIALOG(applet->details), GTK_RESPONSE_CLOSE);