[gimp/gtk3-port: 314/460] app/tools: fix the resize behaviour of the curves tool dialog.

[Michael Natterer <mitch src gnome org>]

commit b86603e9a573ee0db45573c349528bdda64dcc66
Author: Simon Budig <simon budig de>
Date:   Thu May 3 02:40:28 2018 +0200

    app/tools: fix the resize behaviour of the curves tool dialog.

 app/tools/gimpcurvestool.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/app/tools/gimpcurvestool.c b/app/tools/gimpcurvestool.c
index 2e7d23a..8c3d05d 100644
--- a/app/tools/gimpcurvestool.c
+++ b/app/tools/gimpcurvestool.c
@@ -483,6 +483,8 @@ gimp_curves_tool_dialog (GimpFilterTool *filter_tool)
   /*  The curves graph  */
   frame = gtk_frame_new (NULL);
   gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
+  gtk_widget_set_hexpand (frame, TRUE);
+  gtk_widget_set_vexpand (frame, TRUE);
   gtk_grid_attach (GTK_GRID (grid), frame, 1, 0, 1, 1);
   gtk_widget_show (frame);