[gimp] app: remove trailing spaces.

[Jehan Pagès <jehanp src gnome org>]

commit d1939c63d43fbfe0a8c8bb19988cea015598b9b1
Author: Jehan <jehan girinstud io>
Date:   Fri Jan 8 20:49:33 2016 +0100

    app: remove trailing spaces.

 app/widgets/gimpdockbook.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/app/widgets/gimpdockbook.c b/app/widgets/gimpdockbook.c
index 02d2aea..13950ba 100644
--- a/app/widgets/gimpdockbook.c
+++ b/app/widgets/gimpdockbook.c
@@ -932,7 +932,7 @@ gimp_dockbook_add (GimpDockbook *dockbook,
                                           dockable,
                                           position);
 
-  gimp_dockbook_update_auto_tab_style (dockbook);  
+  gimp_dockbook_update_auto_tab_style (dockbook);
 
   /* Create the new tab widget, it will get the correct tab style now */
   tab_widget = gimp_dockbook_create_tab_widget (dockbook, dockable);
@@ -1671,5 +1671,5 @@ static const gchar *
 gimp_dockbook_get_tab_style_name (GimpTabStyle tab_style)
 {
   return g_enum_get_value (g_type_class_peek (GIMP_TYPE_TAB_STYLE),
-                           tab_style)->value_name;  
+                           tab_style)->value_name;
 }