[gimp] app: finish porting GdkScreen/monitor_number to GdkMonitor

[Michael Natterer <mitch src gnome org>]

commit 127ad04bfa794bef65051acc2c3339f720228295
Author: Edward E <develinthedetail gmail com>
Date:   Thu May 31 01:45:18 2018 -0500

    app: finish porting GdkScreen/monitor_number to GdkMonitor
    
    gui_unique_*_idle_open were missed in
    5ece7a8d1f047574b155b45138802e250c056072

 app/gui/gui-unique.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/app/gui/gui-unique.c b/app/gui/gui-unique.c
index 41d59a2b14..fa745617ee 100644
--- a/app/gui/gui-unique.c
+++ b/app/gui/gui-unique.c
@@ -139,7 +139,7 @@ gui_unique_win32_idle_open (IdleOpenData *data)
   if (data->file)
     {
       file_open_from_command_line (unique_gimp, data->file,
-                                   data->as_new, NULL, 0);
+                                   data->as_new, NULL);
     }
   else
     {
@@ -249,7 +249,7 @@ gui_unique_quartz_idle_open (GFile *file)
 
   if (file)
     {
-      file_open_from_command_line (unique_gimp, file, FALSE, NULL, 0);
+      file_open_from_command_line (unique_gimp, file, FALSE, NULL);
     }
 
   return FALSE;