[gimp] app: completely minor typo in function parameter.

[Jehan Pagès <jehanp src gnome org>]

commit 324e1a28b0532fc4fc4cad47d657741765f2b05c
Author: Jehan <jehan girinstud io>
Date:   Sun Mar 12 17:13:45 2017 +0100

    app: completely minor typo in function parameter.

 app/widgets/gimptoolpalette.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/app/widgets/gimptoolpalette.c b/app/widgets/gimptoolpalette.c
index 119508d..73699c6 100644
--- a/app/widgets/gimptoolpalette.c
+++ b/app/widgets/gimptoolpalette.c
@@ -217,7 +217,7 @@ gimp_tool_palette_style_set (GtkWidget *widget,
 
 static void
 gimp_tool_palette_hierarchy_changed (GtkWidget *widget,
-                                     GtkWidget *previous_tolevel)
+                                     GtkWidget *previous_toplevel)
 {
   GimpToolPalettePrivate *private = GET_PRIVATE (widget);
   GimpUIManager          *ui_manager;