[gimp] pdb: add $since info to gimp-image-merge-layer-group

[Ell <ell src gnome org>]

commit 85704c6c4637c54bf5d915e5a0de7df2bfd21a2d
Author: Ell <ell_se yahoo com>
Date:   Sat Sep 7 10:53:26 2019 +0300

    pdb: add $since info to gimp-image-merge-layer-group

 libgimp/gimpimage_pdb.c | 2 ++
 pdb/groups/image.pdb    | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/libgimp/gimpimage_pdb.c b/libgimp/gimpimage_pdb.c
index fb4f23a945..436870ffc8 100644
--- a/libgimp/gimpimage_pdb.c
+++ b/libgimp/gimpimage_pdb.c
@@ -1737,6 +1737,8 @@ gimp_image_merge_down (GimpImage     *image,
  * single normal layer, replacing the group.
  *
  * Returns: (transfer none): The resulting layer.
+ *
+ * Since: 2.10.14
  **/
 GimpLayer *
 gimp_image_merge_layer_group (GimpImage *image,
diff --git a/pdb/groups/image.pdb b/pdb/groups/image.pdb
index d4cc31f499..de399c3b9c 100644
--- a/pdb/groups/image.pdb
+++ b/pdb/groups/image.pdb
@@ -805,7 +805,7 @@ This procedure combines the layers of the passed layer group into
 a single normal layer, replacing the group.
 HELP
 
-    &ell_pdb_misc('2019');
+    &ell_pdb_misc('2019', '2.10.14');
 
     @inargs = (
         { name => 'image', type => 'image',