[gimp] app: fix typo s/depecrated/deprecated/.

[Jehan Pagès <jehanp src gnome org>]

commit 6217527828977019ab25c60dc27542c0ead206c4
Author: Jehan <jehan girinstud io>
Date:   Wed Dec 21 22:50:01 2016 +0100

    app: fix typo s/depecrated/deprecated/.

 app/widgets/gimpviewabledialog.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/app/widgets/gimpviewabledialog.c b/app/widgets/gimpviewabledialog.c
index cb274ef..8a517c1 100644
--- a/app/widgets/gimpviewabledialog.c
+++ b/app/widgets/gimpviewabledialog.c
@@ -247,7 +247,7 @@ gimp_viewable_dialog_new (GimpViewable *viewable,
   g_return_val_if_fail (parent == NULL || GTK_IS_WIDGET (parent), NULL);
 
   if (! viewable)
-    g_warning ("Use of GimpViewableDialog with a NULL viewable is depecrated!");
+    g_warning ("Use of GimpViewableDialog with a NULL viewable is deprecated!");
 
   dialog = g_object_new (GIMP_TYPE_VIEWABLE_DIALOG,
                          "viewable",    viewable,