[gimp] darktable: add info message to dt when started

[Tobias Ellinghaus <et src gnome org>]

commit 87dbc05cbd773bf6d43af045aafea899dc4aefff
Author: Tobias Ellinghaus <me houz org>
Date:   Sat Aug 12 21:55:54 2017 +0200

    darktable: add info message to dt when started
    
    Tell users that they just have to close darktable to export the image
    and don't need to do anything.

 .../file-raw/file-darktable-export-on-exit.lua     |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/plug-ins/file-raw/file-darktable-export-on-exit.lua 
b/plug-ins/file-raw/file-darktable-export-on-exit.lua
index 35f457f..424118a 100644
--- a/plug-ins/file-raw/file-darktable-export-on-exit.lua
+++ b/plug-ins/file-raw/file-darktable-export-on-exit.lua
@@ -1,6 +1,6 @@
 --[[
   This file is part of GIMP,
-  copyright (c) 2015-2016 Tobias Ellinghaus
+  copyright (c) 2015-2017 Tobias Ellinghaus
 
   GIMP is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -36,6 +36,8 @@ if dt.configuration.api_version_string < min_api_version then
   dt.print("the exit export script requires at least darktable version 1.7.0")
   dt.print_error("the exit export script requires at least darktable version 1.7.0")
   return
+else
+  dt.print("closing darktable will export the image and make GIMP load it")
 end
 
 local export_filename = dt.preferences.read("export_on_exit", "export_filename", "string")