[gimp] app: avoid duplicate offset actions

[Ell <ell src gnome org>]

commit 42d4255262740add4d6228d4f32299f1594c09d5
Author: Ell <ell_se yahoo com>
Date:   Thu Jun 6 04:47:46 2019 -0400

    app: avoid duplicate offset actions
    
    Blacklist the "tools-offset" action in the GUI, and only keep
    "filters-offset", to avoid duplication.  Update gimp:offset's
    description, so that "filters-offset" gets a proper tool-tip.

 app/operations/gimpoperationoffset.c | 6 ++++--
 app/widgets/gimpaction.c             | 1 +
 po/POTFILES.in                       | 1 +
 3 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/app/operations/gimpoperationoffset.c b/app/operations/gimpoperationoffset.c
index f9e0c0c766..660962cefb 100644
--- a/app/operations/gimpoperationoffset.c
+++ b/app/operations/gimpoperationoffset.c
@@ -33,6 +33,8 @@
 
 #include "gimpoperationoffset.h"
 
+#include "gimp-intl.h"
+
 
 enum
 {
@@ -112,8 +114,8 @@ gimp_operation_offset_class_init (GimpOperationOffsetClass *klass)
 
   gegl_operation_class_set_keys (operation_class,
                                  "name",        "gimp:offset",
-                                 "categories",  "gimp",
-                                 "description", "GIMP Offset operation",
+                                 "categories",  "transform",
+                                 "description", _("Shift the pixels, optionally wrapping them at the 
borders"),
                                  NULL);
 
   g_object_class_install_property (object_class, PROP_CONTEXT,
diff --git a/app/widgets/gimpaction.c b/app/widgets/gimpaction.c
index b3af253b01..2bd83e22c5 100644
--- a/app/widgets/gimpaction.c
+++ b/app/widgets/gimpaction.c
@@ -341,6 +341,7 @@ gimp_action_is_gui_blacklisted (const gchar *action_name)
       "tools-brightness-contrast",
       "tools-curves",
       "tools-levels",
+      "tools-offset",
       "tools-threshold"
     };
 
diff --git a/po/POTFILES.in b/po/POTFILES.in
index b6a897aab6..cf39510431 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -301,6 +301,7 @@ app/operations/gimpoperationcurves.c
 app/operations/gimpoperationdesaturate.c
 app/operations/gimpoperationhuesaturation.c
 app/operations/gimpoperationlevels.c
+app/operations/gimpoperationoffset.c
 app/operations/gimpoperationposterize.c
 app/operations/gimpoperationsemiflatten.c
 app/operations/gimpoperationthreshold.c